Pre-2017 Crypto Cost Basis: What CAs Should Do When Historical Records are Missing?

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CA Ankit Agarwal

Head of Tax | KoinX

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Your client bought Bitcoin in 2015, held it for years, and eventually sold it. Now, an Income Tax Department (ITD) scrutiny notice arrives asking for the acquisition details. You request the purchase records, but there are no exchange statements, bank references, or email confirmations. All that remains is a substantial sale value reflected in AIS with no documentation explaining the asset’s origin.

Situations like this are increasingly common. Many crypto purchases made between 2013 and 2017 occurred long before India introduced the Virtual Digital Asset (VDA) framework, Schedule VDA reporting, or TDS requirements. At the time, investors had no specific tax-driven reason to preserve detailed records. However, while that historical context explains the gap, it does not solve the evidentiary challenge that arises during scrutiny.

The problem becomes more serious because the Income Tax Act provides no prescribed method for reconstructing the cost basis of older crypto holdings. Although the December 2024 ITAT Jodhpur ruling recognized pre-2022 crypto gains as long-term capital gains, it assumed a verifiable acquisition cost existed.

Without one, the risk shifts toward Section 68 additions, taxation under Section 115BBE, and an effective tax burden of 78% on the proceeds. This guide explains how to rebuild the evidence trail before that risk becomes a reality.

Key Takeaways

  • The ITAT Jodhpur ruling (December 2024) established that pre-2022 crypto gains are taxable as long-term capital gains if held over 36 months, but the ruling assumed cost basis records existed.
  • Where original purchase records are unavailable, the AO (Assessing Officer) may invoke Section 68 or Section 69, reclassifying gross proceeds as unexplained income taxed at % plus a 25% surcharge and 4% cess, an effective rate of 78% under Section 115BBE.
  • No provision in the Income Tax Act prescribes a VDA FMV valuation methodology, this absence creates legitimate space for a CA-constructed, documented cost basis approach.
  • Defensible cost basis reconstruction draws on four source types: blockchain explorer data, exchange historical price archives, corroborating financial records, and FIFO cost allocation.
  • A methodology file prepared before scrutiny carries substantially more evidentiary weight than documentation assembled after a notice is received.

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Why Pre-2017 Crypto Holdings Create a Unique Cost Basis Problem in India?

Pre-2017 Crypto Problem

Pre-2017 crypto acquisitions sit in a period that predates every relevant Indian tax provision, the VDA definition, TDS obligations, and Schedule VDA reporting requirements all came later. That legislative gap is precisely what makes cost basis reconstruction for these holdings a distinct problem rather than a standard filing exercise.

No Reporting Obligation Existed at the Time of Purchase

Prior to the Finance Act 2022, no provision in the Income Tax Act required taxpayers to document or report crypto acquisitions. Section 2(47A), the VDA definition, did not exist. A taxpayer who purchased Bitcoin in 2015 had no legal obligation to retain purchase records at that time. The absence of records is therefore a structural consequence of the regulatory gap, not evidence of wilful non-compliance.

Most Pre-2017 Exchanges No Longer Provide Accessible Records

Several exchanges that operated between 2013 and 2017, including early Indian platforms and international exchanges accessible to Indian users, are either defunct, have changed ownership, or no longer maintain retrievable historical data for accounts from that period. 

Statement download portals for accounts this old rarely function. Where exchange records cannot be obtained through the platform, the cost basis must be built through alternative evidentiary sources, which the rest of this guide addresses in detail.

The missing-records problem is not simply a documentation inconvenience. Before the reconstruction methodology can be applied, a CA must understand what the only available judicial guidance on pre-2022 crypto actually decided, and precisely where that judicial guidance stops. That boundary is where a CA’s work begins.

What Did the ITAT Jodhpur Ruling Establish and Where the Guidance Stops?

Infographic: ITAT Jodhpur ruling on crypto taxation with five key conclusions in blue callouts at left.

The December 2024 ruling from the Income Tax Appellate Tribunal in Jodhpur is the closest thing Indian tax law has to binding guidance on pre-2022 crypto gains. Every CA advising a pre-2017 holder needs to understand both what the Tribunal decided and where its reach ends, because confusing the two leads to filing positions that appear more defensible than they actually are.

The Facts of the Case

The Raunaq Prakash Jain vs. Income Tax Officer (ITAT Jodhpur) case involved a simple set of facts, a pre-2017 acquisition, a significant disposal years later, and an AO who disagreed on classification.

  • The taxpayer purchased cryptocurrencies worth INR 5,05,155 in FY 2015-16
  • The assets were sold in FY 2020-21 for INR 6,69,49,620.
  • The holding period exceeded 36 months from the date of acquisition
  • The Assessing Officer classified the gains as income from other sources, not capital gains, on the grounds that no specific VDA provisions existed at the time of the transaction

What the Tribunal made of those facts changed how pre-2022 crypto disposals are now argued in India.

What the ITAT Actually Ruled?

The Tribunal’s decision rested on a single, consequential classification question, and its answer has direct implications for every pre-2017 file on your desk.

  • Cryptocurrencies are capital assets under Section 2(14) of the Income Tax Act
  • Gains from pre-2022 disposals must be classified as capital gains, not income from other sources
  • Where the holding period exceeds 36 months, long-term capital gains treatment applies
  • The AO was directed to allow applicable LTCG deductions and exemptions, including Section 54F where proceeds were reinvested in a residential property

That classification matters far beyond this single case, it is the argument that keeps pre-2017 disposal proceeds inside the capital gains framework and outside the reach of Section 115BBE.

Why Does This Ruling Matter for Pre-2017 Holdings Specifically?

The ruling does more than clarify a classification point, it directly covers the acquisition window your clients fall into.

  • It confirms that an asset purchased in FY 2015-16 qualifies as a capital asset under Indian tax law
  • It establishes that LTCG treatment applies where the holding period condition is satisfied
  • It preserves access to exemptions under the capital gains framework, including Section 54F
  • It gives you a Tribunal-level precedent to cite when an AO attempts to reclassify proceeds as unexplained income under Section 68

Used correctly, this ruling is the classification anchor for every pre-2017 client file. What it cannot do is tell you what acquisition cost to enter in the return, and that is precisely where the ruling stops.

What the Ruling Does Not Address?

The ITAT decision is entirely silent on cost basis reconstruction, and understanding that silence is as important as understanding the ruling itself.

  • The case proceeded on the assumption that a verifiable cost basis existed, that question was never presented before the Tribunal
  • The ruling provides the classification framework for pre-2022 gains
  • It does not prescribe, suggest, or validate any method for determining acquisition cost when original records are absent
  • It gives you the legal structure but leaves the numbers inside that structure entirely unaddressed

That gap, between a confirmed LTCG classification and an unverifiable acquisition cost, is where your client’s real exposure sits. Before building the reconstruction methodology, it helps to understand exactly what the AO will do when that cost basis cannot be demonstrated.

What Happens When the ITD Cannot Verify a Cost Basis?

Blue gradient infographic titled 'ITD RESPONSE TO MISSING COST BASIS' with five blue rounded callout boxes listing tax rules; KoinX logo top-right and a tax document with coins and a calculator on the right.

Understanding what the AO will do in the absence of a documented cost basis is not a theoretical exercise. It determines the entire risk framing that a CA must present to a client before any reconstruction work begins. The exposure is not the 30% rate most pre-2017 holders expect. It is categorically different.

How Section 68 and Section 69 Apply to Crypto Proceeds?

Section 68 applies when a credit appears in the books and the taxpayer cannot satisfactorily explain its nature and source. In contrast, Section 69 applies when an investment is identified but the source of funds used to make that investment remains unexplained.

This distinction becomes important for pre-2017 crypto holdings. Where cost basis records are missing, an Assessing Officer may treat either the sale proceeds or the original acquisition as unexplained, creating a tax exposure that the long-term capital gains framework alone cannot resolve.

Why Section 115BBE Changes the Exposure Entirely?

Section 115BBE taxes unexplained income additions under Sections 68 and 69 at 60%, to which a 25% surcharge applies, bringing the effective rate to 78% on the gross amount reclassified, not the net gain.

There are no deductions, no exemptions, and no LTCG benefit once this provision is triggered. A pre-2017 holding sold for INR 1 crore with no cost basis becomes a potential INR 78 lakh tax liability on the full proceeds received.

The Penalty Layer Under Section 271AAC

Where income is assessed under Section 115BBE, Section 271AAC imposes a further penalty of 10% of the tax determined. On an INR 78 lakh tax liability, that adds INR 7.8 lakh in mandatory penalty on top. This layer is not discretionary, it applies automatically.

A CA advising a client on pre-2017 holdings must frame the missing-records risk in these precise terms before any methodology discussion begins, so the client understands what a proactive documentation exercise is actually protecting against.

What Does Indian Tax Law Say about VDA Valuation?

Infographic on VDA valuation under Indian tax law with blue gradient background and bullet items describing key points.

The absence of a prescribed valuation methodology is not simply a gap in the ITD’s guidance, it is also the opening that makes a CA-constructed approach both permissible and necessary. Understanding exactly where the law stands, and where it stops, is the foundation for building a position that can withstand scrutiny.

No Prescribed Methodology Exists Under the Income Tax Act

Unlike listed shares, unlisted equity, or immovable property, each carrying a prescribed FMV valuation method under Rule 11UA or related provisions, no equivalent rule exists for VDAs. The Income Tax Act defines VDAs as property and taxes gains on transfer, but stops short of specifying how acquisition value should be determined when original records are absent. This is not an oversight the ITD has since corrected. It remains an open space as of FY 2025-26.

Understanding Rule 11UA

Rule 11UA provides prescribed methods for determining the fair market value of specific asset classes under the Income Tax Rules.

  • Covers shares and securities for various income tax provisions.
  • Applies to specified assets and transactions where FMV determination is required.
  • Prescribes valuation methodologies that taxpayers and tax authorities can consistently apply.
  • Does not include Virtual Digital Assets (VDAs) within its scope.

Why Does Rule 11UA Not Extend to VDAs?

The absence of VDAs from Rule 11UA creates a valuation gap for older crypto holdings.

  • No provision within Rule 11UA prescribes an FMV methodology for cryptocurrencies.
  • No CBDT notification has extended Rule 11UA valuation principles to VDAs.
  • Pre-2017 crypto cost basis reconstruction therefore falls outside any prescribed valuation framework.
  • CAs must rely on general property valuation principles and internationally accepted valuation methodologies to build a defensible cost basis position.

How to Reconstruct a Defensible Cost Basis Without Original Records?

Infographic titled 'Cost Basis Reconstruction Sources' with four blue rounded boxes listing four sources and a tax/document illustration on the right.

With the legal framework understood, the practical work begins. Cost basis reconstruction for pre-2017 holdings draws on four source types, applied in sequence. Each source builds on the one before it, the blockchain establishes the acquisition date, the price archive provides the unit cost, financial records establish that payment was made, and the allocation method applies those figures across multiple purchases.

Source 1: Blockchain Explorer Transaction Data

The first step is locating a wallet address. Clients often recover one from an old device, an exchange withdrawal confirmation, or archived emails. Once a wallet address is available, blockchain records become a valuable source of historical evidence.

Every on-chain transaction is permanently recorded and publicly verifiable. Using explorers such as Etherscan, Blockchain.com, or Blockchair, you can retrieve receipt dates, quantities received, sending addresses, and transaction hashes, creating a reconstruction trail that cannot be altered retrospectively.

Source 2: Historical Exchange Price Archives

Once the acquisition date is established from blockchain records, the next step is determining a reasonable cost basis. Historical price databases provide a practical way to reconstruct the asset’s value on the date it was received or purchased.

Platforms such as CoinMarketCap and CoinGecko maintain historical OHLC data for major cryptocurrencies. Using the closing price on the acquisition date creates a valuation that is publicly verifiable, independently accessible to the AO, and consistently reproducible during scrutiny proceedings.

Source 3: Corroborating Financial Records

Blockchain data and price archives establish what was acquired and when. Financial records establish that the client paid for it. Relevant corroborating documents include:

  • Bank account statements showing outflows to exchange accounts on or around the acquisition date
  • UPI or NEFT transaction references to exchange platforms
  • Email confirmations of purchase or deposit from the exchange
  • Peer-to-peer transfer records where the acquisition was made directly

These records do not need to be exhaustive. They need to sufficiently demonstrate that the acquisition was not gratuitous, that the client provided consideration for the asset. Even partial corroboration changes the evidentiary picture substantially.

Source 4: FIFO Cost Allocation Across Multiple Acquisitions

Many early Bitcoin investors accumulated holdings through multiple purchases over several years. When the same asset was acquired on different dates and specific units cannot be identified, a consistent cost allocation method becomes necessary to reconstruct the acquisition history.

In such cases, FIFO (First In, First Out) is generally the most conservative and defensible approach. It applies a uniform methodology across all acquisitions, avoids selective cost assignment, and reduces the risk of questions arising from potentially favourable or inconsistent allocations.

How to Structure the Documentation File?

KoinX infographic titled Documentation File Structure showing five section bullets on a blue gradient with crypto icons and logo.

Reconstructed data is only as defensible as the file that organises and presents it. A methodology built on blockchain data, price archives, and financial records carries full weight only when it is assembled into a structured document that the AO can follow, verify, and assess independently. This section covers what that file must contain.

The Methodology Statement

The methodology statement opens the file. It explains, in plain language, why original exchange records are unavailable, which alternative sources were used, why those sources were selected, and how cost was allocated across multiple acquisitions. It should reference the absence of a prescribed ITD methodology under the Income Tax Act and note that the adopted approach follows internationally accepted valuation principles.

This statement does two things simultaneously. It pre-empts the AO’s first objection, that the cost basis is unverified, and it establishes that the CA approached the problem methodically rather than arbitrarily. A file that opens with a clear methodology statement is a fundamentally different document from one that simply presents a number without explanation.

The Transaction and Price Data Tables

The evidentiary file should be built around two core tables. The first records each on-chain transaction, including the date, quantity received, wallet address, transaction hash, and the corresponding blockchain explorer URL from which the data was obtained.

The second links every acquisition date to a verifiable historical market price sourced from CoinMarketCap or CoinGecko, with supporting URLs included. Together, these records establish a documented cost basis that can be independently verified without relying solely on the client’s explanation.

The Corroboration Bundle

The next step is building a corroboration file that connects the client’s funds to the original acquisition. Bank statements should be reviewed and annotated to identify the relevant outflows that may have funded the crypto purchase.

Where banking records from 2015-17 are no longer available, a statutory declaration can help bridge the gap. By documenting the acquisition, approximate consideration paid, and platform used, the declaration strengthens the overall evidence trail and supports the narrative established by the available records.

The Final Cost Basis Summary

Finally, the reconstruction file should conclude with a single summary table that consolidates every acquisition into one total cost of acquisition figure. This is the number that ultimately flows into the capital gains computation or Schedule VDA reporting.

Each entry should record the acquisition date, quantity acquired, unit cost adopted, total acquisition cost, and the allocation method used. Just as importantly, every figure must trace back to the supporting evidence and working papers contained elsewhere in the file.

How to Apply the Reconstructed Cost Basis in the ITR?

Blue gradient infographic poster titled 'REPORTING CRYPTOCURRENCY SPENDING TO ITD' with four rounded blue callout boxes listing disposal rules; contains KoinX logo at top-right and a right-side illustration of a tax document, coins, and a calculator. The callouts read: 'Pre-2022 disposal: Schedule CG in ITR-2 or ITR-3; LTCG if held over 36 months', 'Post-2022 disposal: Schedule VDA; reconstructed figure as cost of acquisition; 30% flat rate', 'Disposal straddling April 2022: split treatment required, each portion under the applicable regime', 'Section 54F exemption available for pre-2022 LTCG disposals where conditions are met'

With the documentation file complete, the next step is knowing precisely where the reconstructed figures sit in the return, and how the pre-2022 versus post-2022 split affects both the schedule used and the tax treatment applied.

Pre-2022 Disposals: Schedule CG and LTCG Treatment

For crypto assets acquired before 2017 and sold before 1 April 2022, the gain is generally reported under Schedule CG in ITR-2 or ITR-3. The December 2024 ITAT Jodhpur ruling confirmed that such transactions can qualify for capital gains treatment.

Where the holding period exceeds 36 months, the gain is treated as long-term capital gains. The reconstructed acquisition cost is used as the cost basis in the return, and eligible exemptions, including Section 54F for reinvestment in residential property, may also be claimed where applicable.

Post-2022 Disposals: Schedule VDA

For pre-2017 assets disposed of on or after 1 April 2022, Section 115BBH applies. The gain is reported under Schedule VDA, with the reconstructed figure entered as the cost of acquisition. The flat 30% rate plus 4% health and education cess applies. There is no LTCG benefit under Section 115BBH regardless of how long the asset was held before disposal, the holding period is irrelevant once this regime applies.

Where the Documentation File Sits in the Filing Process?

The methodology file is not submitted with the ITR. Instead, it is retained as supporting documentation and kept ready for production if a scrutiny notice, reassessment query, or deficiency letter is issued in the future.

The return itself contains only the reported figures. The methodology file provides the evidence behind those figures, making it essential to complete, review, and sign off the documentation before filing rather than attempting to reconstruct it after a notice arrives.

What Happens If the ITD Raises a Scrutiny Notice Anyway?

ITD Raises a Scrutiny Notice

A well-prepared documentation file substantially reduces the probability of a Section 68 or Section 69 addition. It does not eliminate the possibility of scrutiny. A CA whose client receives a notice after filing with a reconstructed cost basis is in a materially stronger position than one who receives that same notice without any documentation in place, and the response strategy is different accordingly.

Lead With the Methodology File at First Response

The most consequential step in any scrutiny response is submitting a complete documentation file at the first available opportunity. Doing so establishes the acquisition narrative, valuation methodology, and supporting evidence before the AO raises a specific objection to the cost basis.

A structured and verifiable file changes the nature of the discussion. Instead of arguing from an absence of records, the scrutiny proceeds against an existing methodology supported by evidence. Delaying the submission until later rounds of correspondence can significantly weaken that position.

Use the ITAT Jodhpur Ruling as the Classification Anchor

The December 2024 ITAT Jodhpur ruling provides an important foundation for defending older crypto holdings. It confirms that cryptocurrency acquired before 2022 qualifies as a capital asset and that long-term capital gains treatment can apply when the holding period exceeds 36 months.

While the ruling does not address how to establish the cost basis, it helps secure the correct tax characterization of the asset. Citing it during scrutiny can support the capital gains position and reduce the risk of disposal proceeds being examined under Sections 68 or 69 and subjected to Section 115BBE taxation.

If the AO Substitutes a NIL Cost Basis

If the AO rejects the reconstructed cost basis and substitutes a NIL cost, the entire sale value may be treated as taxable gain. In such cases, the next step is typically an appeal before the Commissioner of Income Tax (Appeals).

The appeal should be supported by the complete reconstruction file, including the valuation methodology and supporting evidence. You can also rely on the ITAT Jodhpur ruling on crypto classification and argue that replacing a documented cost basis with NIL is inconsistent with the principle that cost of acquisition remains the only allowable deduction under the applicable tax framework.

As a CA, managing scrutiny responses across multiple clients can lead to documentation challenges. In such circumstances, you can use KoinX, as it helps centralise transaction data, cost basis calculations, and report-ready records, simplifying the workload for your practices.

How KoinX Helps CAs Handle Pre-2017 Crypto Cost Basis Reconstructions?

Reconstructing cost basis across multiple pre-2017 crypto cases can quickly become resource-intensive. Wallet histories must be verified, historical prices identified, financial records reconciled, and acquisition costs allocated consistently, creating a significant compliance workload for CA practices handling several cases simultaneously.

To simplify this process, KoinX consolidates transaction data from over 800 exchanges and wallets into a single platform. Consequently, CAs can generate Schedule VDA and Schedule CG reports, classify transactions correctly, and calculate cost basis figures across both pre-2022 and post-2022 disposal periods.

Wallet and Blockchain Data Import

KoinX connects directly to wallet addresses and public blockchains, pulling the full on-chain transaction history for each connected address. For pre-2017 holdings where no exchange statement is available, this import gives the CA a verified, timestamped transaction record to anchor the cost basis reconstruction, without manual extraction from block explorers.

Historical Cost Basis Computation Engine

Once transactions are imported, KoinX applies historical price data to calculate the acquisition cost per unit at the date of each transaction. The platform sources closing price data from verified public databases, applies the selected cost allocation method, including FIFO, and produces a computed cost of acquisition figure for every asset in the client’s portfolio. This is the figure that flows directly into the capital gains or Schedule VDA computation.

Schedule VDA and Schedule CG Report Generation

KoinX generates Schedule VDA and Schedule CG reports formatted for ITR-2 and ITR-3. For pre-2017 assets disposed of before April 2022, the capital gains computation reflects the reconstructed cost basis and the applicable LTCG classification. For assets disposed of post-2022, the Schedule VDA output applies the 30% rate under Section 115BBH. Both reports are generated simultaneously where a client’s disposal history straddles the April 2022 threshold.

CA Dashboard for Multi-Client File Management

The KoinX CA dashboard allows a practice to manage multiple client files from a single account, importing data, reviewing computations, and generating reports across the full client base. For a CA handling several pre-2017 cases in a single filing season, this centralisation reduces the risk of methodology inconsistency across files and provides a single audit trail for every computation produced.

For CA practices advising clients with pre-2017 holdings, start with KoinX’s CA platform to centralise cost basis reconstruction across your full client portfolio before the filing deadline.

Conclusion

Missing cost basis records for pre-2017 crypto holdings can create significant tax exposure during scrutiny. While the ITAT Jodhpur ruling supports long-term capital gains treatment for eligible pre-2022 transactions, that position remains difficult to defend without supporting evidence. Reconstructing acquisition records through wallet data, banking trails, emails, and historical pricing sources can help establish a credible cost basis before questions arise.

Accordingly, now is the time to review older client portfolios, identify undocumented holdings, and begin rebuilding the supporting documentation file. KoinX simplifies this process with cost basis calculations, Schedule VDA reporting, Schedule CG outputs, and portfolio-wide tracking through a dedicated CA dashboard. Sign up on KoinX today to manage historical crypto records more efficiently and prepare clients for FY 2025-26 compliance with greater confidence.

Frequently Asked Questions

My Client Has No Wallet Address and No Exchange Records. Is There Any Cost Basis Position Available at All?

Yes, but it requires layering partial evidence. Contact the exchange’s compliance team, some retain KYC records even when the transaction portal is inaccessible. Bank statements showing outflows to a crypto platform, combined with a statutory declaration from the client, can establish that a genuine acquisition occurred and that consideration was paid.

The Exchange My Client Used in 2016 is Defunct. Can Blockchain Explorer Data Alone Establish Cost Basis?

Partially. Blockchain data confirms the acquisition date, quantity, and wallet provenance, but not the price paid. Pair the blockchain extract with a CoinMarketCap or CoinGecko closing price for the same date. That two-source methodology is publicly verifiable and internally consistent, making it a defensible position provided your methodology statement explains the basis clearly.

My Client Sold Pre-2017 Bitcoin in FY 2021-22 Before the Section 115BBH Regime Took Effect. Which Schedule Applies?

Report the disposal under Schedule CG in ITR-2 or ITR-3. Section 115BBH does not apply to pre-April 2022 disposals. Where the holding period exceeds 36 months, as the ITAT Jodhpur ruling confirms, long-term capital gains treatment applies. The client may also claim Section 54F exemption where proceeds were reinvested in residential property.

Can FIFO be Challenged by the AO If the Client Used a Different Method in a Previous Year's Return?

Possibly. The Income Tax Act prescribes no mandatory VDA cost allocation method, but unexplained inconsistency across years invites scrutiny. If the client’s previous Schedule VDA filing implies a different allocation approach, document the reason for any change explicitly in the methodology statement. Consistency across years is always the stronger position.

Is a Statutory Declaration From the Client Sufficient Corroboration When No Financial Records Exist for a 2015 Purchase?

No, not on its own. A declaration supports the narrative but cannot independently establish a cost basis. Where no bank records, blockchain data, or exchange statements exist, document clearly in the methodology statement that the reconstruction relies on public price data and a client declaration, and that figures are subject to revision if further records emerge.

My Client Invested Via a P2P Transfer in 2016 With No Documentation Whatsoever. What is the Risk Exposure in INR Terms If the AO Invokes Section 115BBE?

On an INR 1 crore disposal, Section 115BBE applies at 60% plus a 25% surcharge, an effective 78% rate, producing a INR 78 lakh tax liability. Section 271AAC then adds a mandatory 10% penalty of INR 7.8 lakh. Total exposure: INR 85.8 lakh on proceeds where the actual gain may have been a fraction of that figure.

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