Fly Ash Thermal Power Station Procurement Cement Blending PPC Reconciliation

A Tier-1 or Tier-2 Indian cement producer manufacturing Portland Pozzolana Cement (PPC) under IS 1489 at a grinding unit in the Karnataka-Andhra limestone belt or the Rajasthan-Madhya Pradesh limestone belt sources 25 to 32 percent of the finished cement weight as fly ash from coal-fired thermal power stations operated by the National Thermal Power Corporation (NTPC), the Damodar Valley Corporation (DVC), the Maharashtra State Power Generation Company (MSPGCL), the Rajasthan Rajya Vidyut Utpadan Nigam (RVUNL) and other State-owned generation utilities located within the 300-kilometre radius mandated by the Ministry of Environment, Forest and Climate Change (MoEFCC) fly-ash utilisation notification originally issued vide S.O. 763(E) dated 14 September 1999 under Section 3 and Section 5 of the Environment (Protection) Act 1986 (as amended by S.O. 2804(E) dated 3 November 2009, S.O. 254(E) dated 25 January 2016 and subsequent amendments). The fly ash itself is transferred on a free-of-cost basis under the notification — the cement plant pays no material price to the source thermal power station and holds the periodic free-issue certificate from the source station as the standing procurement artefact. What the cement plant does pay for is the transport from the source thermal power station gate to the cement plant raw-material silo, the loading and unloading handling at both ends, and any beneficiation or drying cost (relevant for pond ash lifted from the ash pond rather than dry-collected from the electrostatic precipitator hoppers). The reconciliation discipline that turns the tanker-wise inward receipt at the cement plant gate into a source-power-station-wise procurement register, reconciles the register to the free-issue certificate from the source station, holds the Section 194C compliance on the third-party logistics contract, feeds the Ind AS 2 landed cost into the finished-PPC inventory valuation and closes the loop against the IS 1489 15-to-35 percent blending-ratio envelope at the grinding-unit batch record is the subject of this fly ash thermal power station procurement cement blending PPC walkthrough.

The reconciliation in one paragraph

A cement plant running a Portland Pozzolana Cement franchise under IS 1489 procures fly ash from the nearest coal-fired thermal power stations under the MoEFCC free-issue notification, and the core reconciliation surface is a source-power-station-wise fly-ash procurement register keyed on the receiving cement grinding unit. Each tanker-wise inward receipt at the plant gate is captured with the source thermal power station identity, the source hopper or silo classification (dry-collected from the electrostatic precipitator hopper versus pond ash lifted from the ash pond), the fly-ash quantity per tanker (typically 25 to 32 tonnes per bulker load) with weighbridge-ticket cross-reference, the free-issue-certificate reference from the source thermal power station, the source-to-plant distance and the 300-kilometre notification-radius compliance flag, the third-party logistics partner and the vehicle registration number, and the IS 3812 Part 1 fly-ash quality test report per procurement lot. The tanker-wise receipts aggregate to the source-power-station-wise monthly quantum and reconcile to the periodic free-issue certificate (net of transit-loss and moisture-adjustment tolerance). The logistics-partner-wise transport-and-handling payment feeds the Section 194C compliance track (Section 194Q does not typically trigger because the fly ash itself carries no consideration and transport is a service, not a purchase of goods). The fly-ash inventory movement is valued at Ind AS 2 landed cost — zero material cost plus transport plus handling plus beneficiation — and rolled into the finished-PPC inventory valuation. At the grinding-unit end, the batch record aggregate fly-ash mass fraction (fly ash consumed divided by PPC produced) is reconciled against the IS 1489 15-to-35 percent envelope, with any batch outside the envelope flagged and re-classified.

What the scenario looks like in India — a Karnataka PPC grinding unit persona

The illustrative persona for this walkthrough is a Tier-1 or Tier-2 Indian cement producer operating a 3.0 MTPA integrated cement plant at a location in the Kalaburagi-Wadi corridor of northern Karnataka, with 80 percent of the cement output (2.4 MTPA) manufactured as Portland Pozzolana Cement under the IS 1489 certification mark and 20 percent as Ordinary Portland Cement (OPC 43 and OPC 53). The plant’s fly-ash requirement at the design blending ratio of 30 percent fly-ash mass fraction on the PPC output is 720,000 tonnes per year — sourced from three coal-fired thermal power stations within the 300-kilometre MoEFCC free-issue radius: the Raichur Thermal Power Station (RTPS, operated by Karnataka Power Corporation Ltd) at 180 kilometres, the Kudgi Super Thermal Power Station (operated by NTPC) at 165 kilometres, and the Bellary Thermal Power Station (operated by Karnataka Power Corporation Ltd) at 210 kilometres. All three source stations sit inside the 300-kilometre notification radius, and the fly ash procured from all three is on the free-of-cost basis under the MoEFCC notification.

Illustrative Tier-1 and Tier-2 Indian cement producers operating in the Karnataka-Andhra limestone belt with substantial PPC franchises and multi-source-station fly-ash procurement programmes include UltraTech Cement (Aditya Birla, the pan-India market leader with plants at Rajashree Cement Malkhed, Rawan Cement Chhattisgarh and grinding units across the belt), Shree Cement (Rajasthan-headquartered with a strong PPC franchise anchored at Beawar, Ras, Suratgarh and multiple grinding units), Ambuja Cements (Adani, with the Wadi plant in Karnataka and multiple integrated units), ACC Ltd (Adani, with the Wadi and Kudithini plants), Dalmia Bharat Cement (Tamil Nadu-headquartered with the Ariyalur, Kadapa and Belgaum operations), JK Cement (Rajasthan-headquartered with the Muddapur Karnataka, Nimbahera and Mangrol operations), Ramco Cements (Tamil Nadu-headquartered with the Ariyalur, Kadapa and Salem operations), Birla Corporation (Kolkata-headquartered with the Satna, Chanderia and Butibori operations), HeidelbergCement India (with the Damoh and Ammasandra grinding operations), JK Lakshmi Cement (with the Sirohi and Jharli operations), Prism Johnson (with the Satna operations), Nuvoco Vistas (with the Chittor and Nimbol operations), Orient Cement (with the Devapur and Jalgaon operations), and India Cements (with the Sankarnagar, Chilamkur and Vishnupuram operations). Every one of these producers with an active PPC franchise sources fly ash from multiple thermal power stations within the MoEFCC 300-kilometre radius under the free-issue mandate and runs the reconciliation discipline documented here across the source-station-wise procurement register.

The regulatory overlay — MoEFCC free-issue notification, IS 1489, IS 3812, Section 194Q vs 194C, Ind AS 2

Five regulatory anchors govern a cement plant’s fly-ash procurement reconciliation for a Portland Pozzolana Cement franchise. The MoEFCC fly-ash utilisation notification (originally issued vide S.O. 763(E) dated 14 September 1999 under Section 3 and Section 5 of the Environment (Protection) Act 1986, and substantively amended by S.O. 2804(E) dated 3 November 2009, S.O. 254(E) dated 25 January 2016 and subsequent amendments) binds every coal-fired and lignite-fired thermal power station in India to make fly ash available on a free-of-cost basis to cement and concrete manufacturers, brick-and-block manufacturers, road-construction agencies and land-fill / mine-back-fill operators located within the notified radius (currently 300 kilometres) of the source thermal power station. The transport cost is to the account of the receiving user; the source thermal power station is required to maintain a fly-ash utilisation register with per-lifter dispatch records and to furnish annual utilisation returns to the concerned MoEFCC regional office and the Central Pollution Control Board.

IS 1489 (Part 1) — the Bureau of Indian Standards specification for Portland Pozzolana Cement, Part 1 Fly Ash Based — is the operating envelope for the finished cement. Clause 5 requires that the fly ash content shall be not less than 15 percent and not more than 35 percent by mass of the Portland Pozzolana Cement, with the ordinary Portland cement clinker (plus permitted performance-improver additions such as gypsum for setting-time control) constituting the balance. Every batch of PPC manufactured at the grinding unit and marked with the IS 1489 certification mark must sit inside this 15-to-35 percent mass-fraction envelope.

IS 3812 (Part 1) — the BIS specification for Pulverized Fuel Ash (fly ash) for use as pozzolana in cement, cement mortar and concrete — is the operating envelope for the incoming raw material. The specification sets the chemical requirements (silicon dioxide plus aluminium oxide plus iron oxide combined not less than 70 percent, loss on ignition not more than 5 percent, sulphuric anhydride not more than 3 percent, magnesium oxide not more than 5 percent), the physical requirements (fineness of not less than 320 square metres per kilogram Blaine, lime reactivity, compressive strength ratio), and the reactivity index. Every fly-ash procurement lot must carry a test report against IS 3812 Part 1 from the source thermal power station chemistry laboratory or from an accredited third-party laboratory (safe context: SGS India, Bureau Veritas India, TÜV SÜD India, Vimta Labs).

Section 194Q of the Income-tax Act 1961 (inserted by the Finance Act 2021, effective 1 July 2021) requires a buyer with a preceding-year turnover above Rs 10 crore to deduct 0.1 percent TDS on the aggregate purchase of goods from any single resident seller above Rs 50 lakh per previous year. For fly-ash procurement, Section 194Q typically does not trigger — the material carries a zero consideration under the MoEFCC free-issue mandate, and the transport-and-handling payment to a third-party logistics partner is a service, not a purchase of goods, and therefore sits under Section 194C (1 percent for individual or HUF sellers, 2 percent for other sellers, subject to the Rs 30,000 single-payment and Rs 1,00,000 aggregate-in-a-year threshold). Terra Insight’s cross-cluster Section 194Q TDS on chemical purchase above Rs 50 lakh — buyer-side reconciliation walkthrough documents the buyer-side aggregate-tracking discipline that applies with the same shape to any goods procurement above the threshold; the TDS payment code 1031 (Section 194Q, sl.8, purchase of goods) walkthrough and the Section 393 payment code finder tool cover the challan-side plumbing for the TDS 2026 payment-code migration.

Ind AS 2 Inventories (Companies (Indian Accounting Standards) Rules 2015) governs the accounting for inventory valuation. Paragraph 10 provides that the cost of inventories shall comprise all costs of purchase, costs of conversion and other costs incurred in bringing the inventories to their present location and condition. Paragraph 11 defines costs of purchase to include the purchase price, import duties and other taxes (other than those subsequently recoverable), and transport, handling and other costs directly attributable to acquisition. For fly ash procured on a free-of-cost basis, the material purchase price is zero, but the Ind AS 2 landed cost at the raw-material silo is not zero — it comprises the transport charge, the loading and unloading handling charge, any beneficiation or drying cost, and the pneumatic transfer or silo-fill charge at the plant end. All of these costs are directly attributable to bringing the fly ash to its present location and condition and are legitimately capitalised into the fly-ash inventory value.

A worked example — a 3.0 MTPA cement plant Kalaburagi PPC franchise at year close

Illustrative — the following figures represent the operating pattern of a Tier-2 Indian cement producer operating a 3.0 MTPA integrated cement plant with a 2.4 MTPA PPC franchise in the Kalaburagi-Wadi corridor of northern Karnataka. Public disclosures by listed Indian cement majors do not reveal per-source-station fly-ash landed cost and per-plant batch-record fly-ash mass fraction in the granularity below; cross-verify against your own procurement register and the cost accountant’s Ind AS 2 landed-cost engine before action.

The plant’s fly-ash procurement design for the illustrative financial year 2026-27 is:

The Ind AS 2 landed cost per tonne of fly ash at the plant raw-material silo for the illustrative average source-to-plant distance of 190 kilometres is:

The annual fly-ash procurement cost bucket for the illustrative 720,000 tonnes requirement is:

The Section 194C compliance test on the third-party logistics partner running the primary bulker tanker fleet (illustrative single logistics partner handling ~60 percent of the total tanker movement, or 432,000 tonnes at Rs 285 per tonne transport charge = Rs 12.31 crore annual payment) sits well above the Rs 1,00,000 aggregate-in-a-year threshold and triggers Section 194C at 2 percent (other-than-individual-or-HUF seller). The cement plant deducts 2 percent TDS on every transport-charge invoice from the logistics partner from the first rupee and remits the TDS by the 7th of the following month; the quarterly TDS return under Form 26Q captures the deduction under the applicable Section 194C payment code (1031 legacy series or the migrated TDS 2026 code as applicable).

The batch-record reconciliation at the grinding unit closes the annual quantum:

The finished-PPC inventory valuation at the ex-factory grinding-unit warehouse rolls up:

Common reconciliation breakages

Four breakages recur across Indian cement producers running the fly-ash-to-PPC procurement-and-blending reconciliation, and each maps to a specific control failure that an MoEFCC regional office fly-ash utilisation inspection at the source thermal power station, a Central Pollution Control Board audit, a BIS IS 1489 certification renewal audit at the receiving cement plant, or a statutory auditor reviewing Ind AS 2 inventory valuation will surface.

• Tanker-wise inward-receipt aggregate does not reconcile to the source thermal power station’s free-issue certificate for the period beyond the transit-loss and moisture-adjustment tolerance. The typical acceptable variance between the source station’s dispatch aggregate (from the fly-ash utilisation register maintained under the MoEFCC notification) and the receiving cement plant’s inward-receipt aggregate (from the weighbridge tickets) is 1 to 2 percent — attributable to transit loss (wind loss during transit for improperly sealed tankers, minor spillage at handling) and moisture adjustment (fly ash gains or loses moisture between source dispatch and destination receipt). A variance beyond this tolerance is a reconciliation exception that could indicate weighbridge calibration drift at either end, tanker under-loading or over-loading, unrecorded transit-en-route diversion or clerical mis-recording. Reconciliation discipline: run the source-station-wise variance test monthly and investigate every excursion beyond 2 percent with the source station’s shift supervisor, the logistics partner and the cement plant weighbridge operator. Terra Insight’s reconciliation failure mode analysis for India design pillar frames the variance-tolerance-and-exception-routing mechanic that carries across every raw-material inward-receipt reconciliation of this shape.

• Beyond-300-kilometre-radius fly-ash procurement booked as free-issue when the MoEFCC notification does not extend the free mandate. The MoEFCC fly-ash utilisation notification binds the source thermal power station to free-of-cost supply only within the notified radius (currently 300 kilometres). Beyond that radius, the source station may still supply fly ash but is not compelled to do so on a free basis — a negotiated material price typically applies. A cement plant that books beyond-radius procurement as free-issue when a material charge was actually paid understates the Ind AS 2 landed cost and creates a downstream mismatch at the source station’s own accounts. The reverse — booking within-radius procurement with a material charge that should have been free — inflates the cost and burns cash. Reconciliation discipline: the source-station-wise procurement register carries a coordinate-based distance calculation to the receiving cement plant with the 300-kilometre radius test as a standing flag, and every source station beyond the radius routes to the procurement lead for negotiated-price documentation before booking.

• IS 1489 blending-ratio drift not caught at the batch record — aggregate fly-ash mass fraction slides outside the 15-to-35 percent envelope. The IS 1489 15-to-35 percent envelope is the binding compliance constraint for PPC — a batch operating below 15 percent fly ash cannot be marked as PPC (it is effectively OPC with a bit of fly ash) and a batch above 35 percent cannot be marked either (it becomes a specialty pozzolanic cement outside IS 1489). Drift below 15 percent typically happens during a fly-ash supply disruption (a source thermal power station shutdown for planned maintenance or an unplanned outage) where the cement plant stretches available fly ash across more batches to keep the grinding unit running. Drift above 35 percent typically happens when a cost-optimisation push tries to squeeze more fly ash into the mix. Either drift produces PPC that fails to meet the IS 1489 certification mark and cannot be dispatched under the PPC label. Reconciliation discipline: the batch-record electronic weighing-and-batching system runs a per-batch IS 1489 envelope check, and the aggregate batch-record fly-ash mass fraction for the period sits on the plant quality-assurance lead’s daily dashboard with amber and red thresholds.

• Section 194C compliance on the third-party logistics contract missed — TDS not deducted from the first rupee once the aggregate crosses Rs 1,00,000 in the year. Section 194C applies from the first rupee of any single payment exceeding Rs 30,000 or once the aggregate payments to a contractor in a financial year exceed Rs 1,00,000. A cement plant procuring fly ash across a full year from multiple source thermal power stations typically pays a single primary logistics partner running the bulker fleet several crore rupees a year in transport charges — well above the Section 194C aggregate threshold. Missing the deduction, deducting at the wrong rate (1 percent for individual or HUF versus 2 percent for other-than-individual-or-HUF sellers) or failing to remit by the 7th of the following month triggers Section 40(a)(ia) disallowance in the buyer’s assessment (30 percent of the payment disallowed as a deduction) and interest under Section 201 plus a penalty exposure under Section 271C. Reconciliation discipline: the logistics-partner-wise cumulative-payment ledger runs continuously with the Section 194C threshold flag, and the TDS remittance calendar is pinned to the 7th-of-following-month rhythm. Terra Insight’s Section 194Q TDS on chemical purchase above Rs 50 lakh — buyer-side reconciliation sibling documents the buyer-side aggregate-tracking discipline that carries with the same shape across Section 194C, Section 194Q and any other buyer-side TDS obligation; the reconciliation playbook for monthly close operations pillar frames the monthly-close checkpoint that surfaces the TDS drift before it becomes a Section 40(a)(ia) disallowance at year-end.

How a reconciliation platform handles this

A purpose-built cement reconciliation platform ingests every fly-ash tanker-wise inward-receipt weighbridge ticket at the plant gate against a source-power-station-wise procurement register, cross-references the aggregate to the periodic free-issue certificate from the source thermal power station (with the transit-loss-and-moisture-adjustment tolerance flag), holds the 300-kilometre notification-radius compliance flag per source station, pulls the IS 3812 Part 1 fly-ash quality test report per procurement lot, threads the logistics-partner-wise transport-and-handling payment through the Section 194C cumulative-threshold-and-rate compliance track, and rolls the Ind AS 2 landed cost (zero material plus transport plus handling plus beneficiation) into the finished-PPC inventory valuation alongside the clinker inter-unit-transfer cost, the gypsum cost, the grinding-unit conversion cost and the packing-plant cost. At the grinding-unit end, the batch-record aggregate fly-ash mass fraction is reconciled against the IS 1489 15-to-35 percent envelope, and the fly-ash inventory movement (opening plus procurement minus closing) reconciles to the batch-record consumption. Standing dashboard controls surface any tanker-wise inward-receipt-versus-free-issue-certificate variance beyond tolerance, any beyond-300-kilometre source station without negotiated-price documentation, any procurement lot failing the IS 3812 Part 1 quality specification, any batch operating outside the IS 1489 envelope, any logistics-partner payment straddling a Section 194C threshold and any Ind AS 2 landed-cost line pending pull-through into the finished-PPC valuation. Match-rate improvement of 51 to 88 percent on the tanker-wise-receipt to source-station-wise-certificate reconciliation, combined with an ISO 27001:2022 posture and DPDP Act 2023 aligned data handling for the fly-ash-utilisation compliance evidence submitted to MoEFCC regional offices and the Central Pollution Control Board, is what makes the platform an infrastructure investment for a Tier-1 or Tier-2 Indian cement producer running a multi-plant PPC franchise across the Karnataka-Andhra, Rajasthan-Madhya Pradesh, Tamil Nadu, Gujarat and Chhattisgarh-Odisha limestone belts — rather than a spreadsheet substitute that leaves the source-station-wise procurement register, the free-issue certificate reconciliation, the IS 1489 blending-ratio compliance and the Section 194C threshold discipline as manual overheads on a hybrid plant-commercial-plus-cost-accountant team. The commercial pillar for the cement sub-cluster is cement reconciliation software India; the broader authority for the platform is reconciliation software India.

The MoEFCC free-issue mechanic for fly ash sits alongside the parallel slag from steel mill for cement blending PSC — inter-industry supply reconciliation discipline for Portland Slag Cement (IS 455) plants procuring granulated blast furnace slag from SAIL, JSW, Tata Steel and JSPL steel mills, and the cement plant clinker inter-unit stock transfer GST IGST reconciliation walkthrough covers the clinker-transfer leg of the same multi-unit cement manufacturing envelope. The Chemicals-cluster cross-cluster bridge for the parallel MoEFCC clearance regime sits at MoEFCC CTE and CTO clearance cost accounting for chemical plant and the seven-family human-error taxonomy that surfaces the invoice-classification-and-approval gap sits in the human errors detection envelope anchor.

Terra Insight Editorial Team Reconciliation Infrastructure

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Published 27 July 2026

Domain expertise

TDS Reconciliation GST Input Credit Platform Settlements NACH Batch Matching Bank Reconciliation Form 26AS Matching ERP Integrations Enterprise Finance Ops

Reviewed by

NK

Navin Krishnan

Managing Director & Founder — Terra Insight

Ex Amazon India · Intuit QuickBooks · Tata nexarc

ISO 27001:2022 Patent Pending Incorporated 2024