Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →
A finance controller at a mid-market trading company receives a call from the current-account relationship manager at the bank on a Tuesday morning. The bank has received Form GST DRC-22 from the Commissioner of Central GST and has marked a lien on the account effective immediately. The account balance at the time of the freeze is Rs 45 crore, held largely as working-capital float against a receivables cycle. The underlying trigger is a pre-SCN investigation under Section 74 of the CGST Act 2017 into an alleged Rs 15 crore evasion covering FYs 2022-23, 2023-24, and 2024-25 — the investigation opened three months earlier with a Form DRC-01A intimation. The DRC-22 order was issued on the Monday evening and communicated to the bank on Tuesday. The taxpayer received a copy by post on Wednesday, which becomes Day 1 of the seven-day objection window under Rule 159(5). Operations are effectively paralysed — no vendor payments can clear, no salary run can be executed, and the receivables cycle continues to grow the balance in another (still unfrozen) sister account. The controller has to decide within seven calendar days whether to file a Rule 159(5) objection, file a writ petition under Article 226 in the jurisdictional High Court, do both in parallel, or accept the attachment and negotiate an early SCN issuance to move the matter to adjudication.
Section 83(1) of the CGST Act 2017 permits the Commissioner to attach provisionally any property, including a bank account, belonging to the taxable person where the Commissioner is of the opinion that provisional attachment is necessary to protect the interest of Government revenue and where a proceeding is pending under Chapter XII (assessment), Chapter XIV (inspection, search, seizure, arrest), or Chapter XV (demands and recovery, including Sections 73 and 74). Section 83(2) fixes a one-year sunset on every attachment. Rule 159(1) prescribes the DRC-22 as the operative form; Rule 159(2) requires simultaneous communication to the bank and the taxpayer; Rule 159(5) gives the taxpayer seven days to file a written objection with the Commissioner. The Supreme Court's Radha Krishan Industries ruling (April 2021) overlays four judicial-review tests on the Section 83 power — the tangible-material test (the opinion must rest on identifiable evidence), the proportionality test (the property attached cannot exceed the estimated demand), the cumulative pre-conditions test (all Section 83(1) requirements must be satisfied at the moment of the order), and the strict-construction test (the power is draconian and must be exercised sparingly). CBIC Circular No. 178/12/2022-GST implements the Radha Krishan framework in binding administrative directions for field officers. Article 226 writ jurisdiction is available in parallel with the Rule 159(5) route and has become the dominant remedy since 2021 for high-value bank-account attachments.
A DRC-22 receipt intake protocol that records the date of communication to the bank, the date of receipt by the taxpayer, the underlying proceeding reference (DRC-01A intimation number, Section 74 investigation file, or search-seizure warrant), the estimated demand quantum on the record, the balance in the frozen account at the time of the freeze, and the projected balance over the next 30 days from receivables accruals. A seven-day Rule 159(5) objection calendar starting from the date of taxpayer-side communication (not bank-side communication) with a documentary draft anchored on the four Radha Krishan tests and the CBIC Circular 178/12/2022 proportionality direction. A parallel Article 226 writ petition draft prepared within the same seven days, referencing the specific facts of the case — the balance-to-demand ratio, the operational paralysis, the receivables cycle in the sister account, the tangible-material or proportionality breach — and lodged in the jurisdictional High Court to hold the interim-relief option open. A cash-flow contingency map showing which vendor payments, statutory obligations (TDS deposit, GST tax payment, PF-ESI, MSME 43B(h) payments), payroll runs, and secured-debt EMIs will breach in Days 1 through 30 of the attachment, so the operational escalation is visible to the CFO and the board. An SCN-issuance tracking sheet against the underlying Section 74 proceeding — because the attachment is a pre-SCN protection measure, an early SCN issuance moves the matter to the adjudication track and often triggers a natural release or renegotiation of the attachment.
The Rule 159(5) objection is filed within seven days with a documented case on tangible-material, proportionality, and pre-condition tests. The Commissioner's hearing is scheduled within the following 10 to 15 days and typically produces a DRC-23 order releasing the Rs 30 crore excess above the Rs 15 crore estimated demand, with the Rs 15 crore lien continuing until the SCN is issued. Where the DRC-23 order is unsatisfactory or delayed, the parallel Article 226 writ petition provides the fallback with the High Court applying the Radha Krishan framework de novo and often granting interim relief releasing the excess within two to three hearings. The one-year Section 83(2) sunset is calendared for automatic lapse on Day 366 with a bank communication ready to trigger the release. The underlying Section 74 investigation moves onto the adjudication track through the DRC-01A to DRC-01 to DRC-07 sequence, and the Section 83 attachment either lapses at the twelve-month mark or is subsumed into the recovery mechanic under Section 79 once the DRC-07 order confirms the demand.
The bank calls on a Tuesday morning. The relationship manager for the current account says a lien has been placed under Form GST DRC-22 received from the Commissioner of Central GST the previous evening. The account balance at the freeze is Rs 45 crore. No withdrawals will clear until further notice.
You know there is an open pre-SCN investigation under Section 74 for an alleged Rs 15 crore evasion covering three prior financial years — a Form DRC-01A intimation was received three months earlier. But the balance is three times the alleged demand, and the seven-day clock under Rule 159(5) to file a written objection with the Commissioner has already started.
The quick answer
Section 83 of the CGST Act 2017 gives the Commissioner the power to attach provisionally any property, including a bank account, where a proceeding under Chapter XII (assessment), Chapter XIV (inspection, search, seizure) or Chapter XV (demands and recovery — Sections 73 and 74) is pending and the Commissioner forms the opinion that attachment is necessary to protect Government revenue. The operative form is DRC-22, communicated simultaneously to the bank and the taxpayer.
The taxpayer has three remedies. First, a Rule 159(5) written objection to the Commissioner within seven days of the DRC-22 communication, followed by a hearing and a DRC-23 order that may release the property, release the excess, or continue the attachment. Second, an Article 226 writ petition in the jurisdictional High Court — which since the Supreme Court’s ruling in Radha Krishan Industries v State of Himachal Pradesh (April 2021) has become the dominant remedy for high-value attachments. Third, the automatic Section 83(2) sunset — every attachment ceases after one year unless the Commissioner passes a fresh DRC-22.
Where Section 83 sits in the CGST architecture
Section 83 is not a demand provision and not a recovery provision. It is a revenue-protection tool that operates in the gap between an investigation opening and the tax demand being confirmed. The typical sequence — a Form DRC-01A pre-SCN intimation goes out, the officer opens an investigation under Section 74 for allegedly fraudulent evasion, the investigation gathers evidence over three to nine months, a Section 74 Show Cause Notice (Form DRC-01) is issued, the taxpayer replies within thirty days, the adjudicating authority passes an order in Form DRC-07 confirming the demand, and the demand becomes recoverable under Section 79. Section 83 permits the Commissioner to freeze property mid-way through this sequence, on the basis that if the demand is confirmed at the end, the taxpayer may no longer have assets to satisfy it.
The difference between Section 73 and Section 74 is directly relevant — Section 74 covers cases involving fraud, wilful misstatement, or suppression, with the extended five-year limitation, the one-hundred-per-cent penalty exposure, and the higher pre-SCN investigation stakes that make Section 83 attachment more common than under a Section 73 (no-fraud) proceeding.
Section 83(1) — the pre-conditions
The Commissioner may attach provisionally only where two conditions are cumulatively satisfied. First, a proceeding must be pending under Chapter XII, Chapter XIV, or Chapter XV — a mere possibility of a future proceeding is not enough. Second, the Commissioner must form the opinion in writing that attachment is necessary to protect Government revenue. The opinion is a subjective satisfaction, but the Supreme Court in Radha Krishan Industries made clear that the satisfaction must rest on tangible material — bank statements showing recent large outflows, evidence of asset dissipation, a pattern of shell-company transactions — not on an unsupported apprehension.
The order is passed in Form GST DRC-22 under Rule 159(1). Rule 159(2) requires the Commissioner to send a copy to the concerned Revenue Authority or Transport Authority (for immovable property) or, in the case of a bank account, to the bank with instructions to place the lien. Simultaneously, a copy is served on the taxable person. The bank complies immediately; the taxpayer’s operations are paralysed within the day.
Section 83(2) — the one-year sunset
Every DRC-22 attachment lapses automatically at the expiry of one year from the order date. The sunset is a hard statutory ceiling, not a rolling window — the Commissioner cannot administratively extend the attachment. Where the underlying investigation is still pending at the twelve-month mark and the Commissioner considers the revenue-protection concern still live, a fresh DRC-22 order is required. Each fresh order restarts the twelve-month clock and gives the taxpayer a fresh seven-day Rule 159(5) window.
In practice, the bank does not always track the sunset on its own systems. The taxpayer should calendar Day 366 as the earliest date the lien can be lifted, and send a formal communication to the branch on that day attaching a copy of the DRC-22 with the order date highlighted, requesting the immediate release under Section 83(2). Where the bank is slow to act, a follow-up letter from a chartered accountant or a legal notice from counsel typically produces the release within a week.
The Radha Krishan four-part test
The Supreme Court’s ruling on 20 April 2021 in Radha Krishan Industries v State of Himachal Pradesh remade the Section 83 landscape. The Court held that the power is a draconian one that must be exercised sparingly, and laid down four tests that a court will apply on a writ challenge under Article 226.
First, the tangible-material test — the Commissioner’s opinion must be based on identifiable evidence on the file, not on subjective apprehension or on the mere fact that a proceeding is pending. Second, the proportionality test — the property attached cannot exceed the quantum of demand under determination. A Rs 45 crore bank balance frozen against a Rs 15 crore alleged evasion breaches this test on its face, and the excess Rs 30 crore must be released unless the Commissioner can point to specific reasons for the excess attachment recorded in writing at the time of the order. Third, the cumulative pre-conditions test — all Section 83(1) requirements (pending proceeding, written opinion, tangible material) must be satisfied at the moment of the order, not manufactured post facto in response to an objection. Fourth, the strict-construction test — because the power is draconian, any doubt or ambiguity is resolved in favour of the taxpayer.
CBIC Circular 178/12/2022 — the binding operational direction
Following the Supreme Court ruling, the CBIC issued Circular No. 178/12/2022-GST dated 3 January 2022 directing field officers on Section 83 practice. The circular requires the Commissioner to record in writing the reasons for the opinion; the attachment must be commensurate with the estimated pending liability; a bank account attachment must not exceed the estimated liability so that ordinary business operations are not paralysed; and the DRC-22 must be served simultaneously on the bank and the taxable person. Where excess is attached, the Commissioner must, on application by the taxable person, release the excess by DRC-23 order.
The circular is binding on field officers and is the second-strongest argument (after Radha Krishan itself) in a Rule 159(5) objection. Cite both authorities together in the objection draft — the Supreme Court ruling for the legal principle, the CBIC circular for the direct administrative instruction that the officer is bound to follow.
The seven-day Rule 159(5) objection
Within seven calendar days of the DRC-22 communication to the taxpayer (not the earlier communication to the bank), a written objection may be filed with the Commissioner. The objection typically covers three grounds. First, the property attached was not liable to attachment — for example, the account was a designated escrow held on trust for customers, or the balance included ring-fenced amounts belonging to a group entity that is a separate legal person. Second, the estimated demand does not justify the quantum attached — the Rs 45 crore versus Rs 15 crore proportionality breach cited above. Third, the pre-conditions of Section 83(1) are not satisfied — no proceeding is actually pending, no tangible material supports the opinion, or the DRC-22 was issued without recording reasons in writing.
After the objection, the Commissioner must afford an opportunity of being heard. The rule does not fix an outer time limit on the hearing, but in practice hearings are scheduled within 10 to 15 days. The order that follows, in Form DRC-23, either releases the property, releases the excess, or continues the attachment with reasons.
The parallel Article 226 writ petition
Since 2021, filing a Rule 159(5) objection and preparing an Article 226 writ petition in parallel has become the dominant strategy for high-value bank-account attachments. The writ petition is drafted within the same seven-day window as the objection and lodged in the jurisdictional High Court soon after — either simultaneously with the objection or after an unsatisfactory hearing outcome.
The writ argues that the DRC-22 is bad in law under the Radha Krishan tests, and requests interim relief releasing the excess (or the whole) attachment pending final adjudication. High Courts across jurisdictions have granted interim relief in the first two or three hearings on well-pleaded facts, particularly where the operational paralysis (vendor payments defaulting, statutory dues bouncing, secured-debt EMIs missed) is documented in the petition with dated evidence.
The escalation-first move — the seven-day clock
The single control that matters is the seven-day Rule 159(5) window. Miss the window and the Commissioner’s obligation to afford a hearing is triggered only if a fresh objection is entertained — administratively slower and legally weaker than the statutory route. The seven days are calendar days, not working days, and start from the date of communication to the taxpayer, not the earlier date of communication to the bank.
Day 1 — DRC-22 received by post, courier, or e-mail. File-open the objection. Draft the four-test Radha Krishan argument and the CBIC Circular 178/12/2022 proportionality point.
Day 2 to Day 4 — gather the tangible-material rebuttal (the underlying investigation file references, the DRC-01A intimation, the receivables cycle documentation showing why the frozen account balance is not dissipation-risk capital), draft the parallel Article 226 writ petition, brief counsel on both remedies.
Day 5 to Day 7 — finalise the objection with counsel, obtain the taxpayer’s board resolution or authorised-signatory authority for the writ, file the Rule 159(5) objection with the Commissioner’s office (with a stamped acknowledgement copy), and lodge or prepare-to-lodge the writ.
When Section 83 sits alongside a DRC-01B reconciliation
A Section 83 attachment on the pre-SCN Section 74 track is separate from — but often runs in parallel with — the routine DRC-01B GSTR-1-versus-GSTR-3B reconciliation intimation flow. The DRC-01B reconciliation reply walkthrough is the deeper treatment of the reconciliation-notice route (Rule 88C), and the DRC-01B 72-hour triage playbook is the operational sequencing checklist that keeps the day-one to day-seven response inside a defensible window. Where an attachment lands during an already-open DRC-01B cycle, the two responses have to be run in parallel by two named owners — the tax counsel on the Section 83 remedy, the indirect-tax controller on the DRC-01B reply — with a shared calendar so that neither deadline slips.
What to do while the attachment is live — the operations layer
The seven-day objection and the parallel writ are the legal layer. The operational layer runs in parallel. Map every payment obligation that will breach in Days 1 through 30 of the attachment — vendor payables, GST payment for the current month, TDS deposit for the current month, PF-ESI, MSME 43B(h) settlement deadlines, payroll, secured-debt EMIs. Sequence the sister-account cash flow to prioritise statutory dues and secured debt over vendor payments (a statutory default compounds a Section 83 crisis; a vendor default is a commercial negotiation). Communicate proactively with the top 20 vendors, the payroll bank, and the secured lender — the Section 83 order is a matter of public record and silence is worse than a controlled disclosure.
When the manual response outgrows the finance team
A one-off Section 83 attachment can be handled by the tax counsel and the finance controller working together for two weeks. A pattern of pre-SCN investigations across multiple GSTINs or across multiple financial years — with the underlying reconciliation gaps in GSTR-1 versus GSTR-3B, GSTR-2B versus purchase register, and Section 43B(h) MSME payments accumulating month after month — is what pushes a mid-market business into a repeating Section 83 exposure that a spreadsheet-driven monthly close cannot prevent.
At that scale, moving the underlying reconciliations — GSTR-1 outward versus GSTR-3B tax payment, GSTR-2B versus purchase register ITC, DRC-01B parallel replies, MSME payment tracking against Section 43B(h) — onto continuously refreshed detection, where Terra Insight’s GST reconciliation software treats the pre-SCN exception queues as first-class monthly outputs, is what stops the investigation from opening in the first place. The companion walkthrough on what happens when the GST officer visits for audit covers the earlier-stage response where a Section 65 audit precedes an eventual Section 74 investigation, and is the natural next read for a finance team that has just come out of a Section 83 crisis and wants to close the upstream gap.
Go deeper
- What is the difference between Section 73 and Section 74 CGST
- What happens when the GST officer visits for audit
- DRC-01B reconciliation reply walkthrough
- DRC-01B 72-hour triage playbook for India
- GST reconciliation software for India
Frequently Asked Questions
What does provisional attachment under Section 83 actually mean, and why is my bank account frozen?
Section 83 of the CGST Act 2017 allows the Commissioner to attach any property belonging to a taxable person, including a bank account, provisionally — meaning the taxpayer cannot operate the account (no withdrawals, no cheque clearance, no auto-debit) until the attachment is released, withdrawn, or lapses on the one-year sunset under Section 83(2). The attachment is not a final determination of tax liability — it is a revenue-protection measure while the Commissioner concludes the underlying proceeding, most commonly a pre-SCN Section 74 investigation involving alleged fraud or wilful misstatement. The mechanic is Form GST DRC-22, sent by the Commissioner to the bank instructing the bank to mark a lien on the account, with a simultaneous copy to the taxpayer. The bank complies immediately on receipt and typically calls the account holder within the day to inform them of the freeze.
How much time do I have to object, and to whom?
Rule 159(5) of the CGST Rules 2017 gives the taxpayer seven days from the date of the DRC-22 communication to file a written objection with the Commissioner who issued the order. The objection may argue that the property attached was not liable to attachment (for example, the account belongs to a partnership firm that is a separate legal person, or the balance in the account was ring-fenced customer deposits held on trust), that the estimated demand does not justify the quantum attached (a Rs 45 crore balance frozen against a Rs 15 crore alleged evasion breaches the CBIC Circular 178/12/2022 proportionality direction), or that the pre-conditions of Section 83(1) are not satisfied (no proceeding under Chapters XII, XIV, or XV is pending; no tangible material supports the Commissioner’s opinion). After receiving the objection, the Commissioner must afford an opportunity of being heard and pass an order in Form DRC-23 either releasing the property, releasing the excess, or continuing the attachment with reasons. In practice, the hearing is scheduled within 10 to 15 days of the objection, though the rule itself does not prescribe an outer time limit on the hearing date.
The attachment order looks disproportionate — a Rs 45 crore account balance for a Rs 15 crore alleged demand. Is that legal?
No, and this is the strongest ground under Rule 159(5) and Article 226. The Supreme Court in Radha Krishan Industries v State of Himachal Pradesh (2021) held that Section 83 is a draconian power that must be exercised proportionately — the property attached cannot exceed the quantum of the demand under determination. CBIC Circular No. 178/12/2022-GST reiterated the same direction in binding operational terms for field officers. Where the alleged evasion is Rs 15 crore and the frozen balance is Rs 45 crore, the excess Rs 30 crore is attachable only if the Commissioner can point to specific reasons — for example, an apprehension that the taxpayer will dissipate the excess before the demand is confirmed — and even those reasons must be recorded in writing at the time of the DRC-22 order, not manufactured post facto in response to the objection. The realistic outcome of a well-drafted Rule 159(5) objection on this fact pattern is a partial release of the Rs 30 crore excess by DRC-23, with the Rs 15 crore lien continuing until the underlying Section 74 SCN is issued and adjudicated.
Can I go straight to the High Court under Article 226 instead of using Rule 159(5)?
Yes, and since the Supreme Court’s Radha Krishan ruling in April 2021, Article 226 writ jurisdiction has become the dominant remedy against Section 83 attachments — often used in parallel with a Rule 159(5) objection rather than sequentially. The High Court, on a properly pleaded writ petition, can quash the DRC-22 order where the Commissioner’s opinion is not backed by tangible material, where the attachment breaches the proportionality test, where the pre-conditions of Section 83(1) are not satisfied, or where the DRC-22 was issued without recording reasons in writing. The petition is typically filed within a week of the attachment to keep the interim-relief argument on cash-flow paralysis fresh. Filing a writ does not preclude the Rule 159(5) route — both remedies can run concurrently, and many taxpayers file the Rule 159(5) objection immediately and prepare the writ petition in parallel so that the High Court is the fallback if the Commissioner’s hearing does not produce a satisfactory DRC-23 order.
The attachment has been in place for eleven months. Does it lapse automatically at twelve?
Yes, under Section 83(2) of the CGST Act 2017, every provisional attachment ceases to have effect after the expiry of one year from the date of the DRC-22 order. The lapse is automatic — no fresh order is required from the Commissioner to release the property, and the bank should lift the lien on the day following the twelve-month mark. In practice, the taxpayer often needs to send a formal communication to the bank on Day 366 attaching a copy of the DRC-22 with the date-of-order highlighted, because the bank’s operations team may not track the sunset. The Commissioner can, however, pass a fresh DRC-22 order re-attaching the same property under a fresh opinion — the fresh order restarts the twelve-month clock and gives the taxpayer a fresh seven-day Rule 159(5) window. Re-attachment is not routine and requires the Commissioner to freshly satisfy the Section 83(1) pre-conditions, meaning the underlying proceeding must still be pending and the tangible material must still support the revenue-protection opinion.
Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →
- ▸ Section 83, Central Goods and Services Tax Act 2017 — Sub-section (1) — Where, after the initiation of any proceeding under Chapter XII, Chapter XIV or Chapter XV, the Commissioner is of the opinion that for the purpose of protecting the interest of the Government revenue it is necessary so to do, he may, by order in writing, attach provisionally, any property, including bank account, belonging to the taxable person or any person specified in sub-section (1A) of Section 122, in such manner as may be prescribed. Sub-section (2) — Every such provisional attachment shall cease to have effect after the expiry of a period of one year from the date of the order made under sub-section (1). The one-year sunset in sub-section (2) is a hard statutory ceiling, not a rolling window — a fresh order is required to re-attach the same property after the sunset, and each fresh order restarts the seven-day Rule 159(5) objection clock.
- ▸ Rule 159, Central Goods and Services Tax Rules 2017 — Sub-rule (1) — Where the Commissioner decides to attach any property, including bank account in accordance with the provisions of Section 83, he shall pass an order in FORM GST DRC-22 to that effect mentioning therein the details of property which is attached. Sub-rule (2) — The Commissioner shall send a copy of the order of attachment to the concerned Revenue Authority or Transport Authority or any such Authority to place encumbrance on the said movable or immovable property. Sub-rule (5) — Any person whose property is attached may, within seven days of the attachment under sub-rule (1), file an objection to the effect that the property attached was or is not liable to attachment, and the Commissioner may, after affording an opportunity of being heard to the person filing the objection, release the said property by an order in FORM GST DRC-23. The seven-day window is calendar days from the date of communication of the DRC-22, and the Commissioner's hearing is the first opportunity to establish that the attachment breaches the proportionality test.
- ▸ Radha Krishan Industries v State of Himachal Pradesh (2021 SCC OnLine SC 334), Supreme Court of India — The Supreme Court, on 20 April 2021, laid down the framework for Section 83 provisional attachment. First, the power under Section 83 is a draconian power, to be exercised sparingly and only when the exigencies of protecting revenue warrant it. Second, the Commissioner must form an opinion based on tangible material — a subjective satisfaction that is amenable to judicial review under Article 226. Third, the attachment must be proportionate to the estimated liability — the property attached cannot exceed the quantum of demand under determination. Fourth, the pre-conditions of Section 83(1) must be satisfied cumulatively, and the mere pendency of proceedings under Chapters XII, XIV, or XV does not automatically trigger the power. The judgment is the leading authority on Section 83 challenges and has materially altered the balance between the Commissioner's discretion and the taxpayer's Article 226 remedy in every subsequent case.
- ▸ CBIC Circular No. 178/12/2022-GST dated 3 January 2022 — The CBIC issued binding operational guidelines to field officers on Section 83 provisional attachment after the Supreme Court's Radha Krishan Industries ruling. The circular directs that the Commissioner must record in writing the reasons for the opinion that provisional attachment is necessary; the attachment must be commensurate with the estimated pending liability; a bank account attachment must not exceed the estimated liability so that the taxable person's ordinary business operations are not paralysed; and the DRC-22 order must be served on both the bank (with instructions to mark the lien) and the taxable person simultaneously. Where an excess attachment is found — for example, a Rs 45 crore bank balance frozen against a Rs 15 crore alleged evasion — the Commissioner must, on application by the taxable person, release the excess by order in FORM GST DRC-23. The circular is the binding administrative direction that field officers work under and it is the second-strongest argument (after Radha Krishan) in a Rule 159(5) objection.
- ▸ Section 74, Central Goods and Services Tax Act 2017 — Where it appears to the proper officer that any tax has not been paid or short paid or erroneously refunded or where input tax credit has been wrongly availed or utilised by reason of fraud, or any wilful-misstatement or suppression of facts to evade tax, he shall serve notice on the person chargeable with tax which has not been so paid or which has been so short paid or to whom the refund has erroneously been made, or who has wrongly availed or utilised input tax credit, requiring him to show cause as to why he should not pay the amount specified in the notice along with interest payable thereunder Section 50 and a penalty equivalent to the tax specified in the notice. Section 83 is most commonly invoked at the pre-SCN investigation stage of a Section 74 proceeding — where the allegation involves fraud, wilful misstatement, or suppression, and the extended five-year limitation and one-hundred-per-cent penalty exposure make revenue protection a real concern for the Commissioner.