How to Complete Due Diligence Before an Indian M&A Transaction

How to Complete Due Diligence Before an Indian M&A Transaction

Completion of legal due diligence before an Indian M&A transaction is an important safeguard a buyer or seller can put in place before capital or asset changes hands. As deal activity across India intensifies, driven by strategic consolidation, private equity appetite and cross-border interest across sectors including technology, pharma and financial services, the quality of pre-transaction investigation increasingly decides whether a deal creates value or inherits liability. This guide sets out a practical, India-specific playbook covering corporate, regulatory, tax, commercial, employment and intellectual property checks, structured around the two critical phases of any transaction: pre-signing and pre-closing. It is written for buyers, sellers, in-house counsel and external advisers who understand corporate transactions but may not be specialists in Indian law.

Executive summary: what this guide covers and who should read it

Due diligence in an Indian M&A transaction is not a single event but a layered process. It begins before the acquisition documents are signed and continues through to closing, when conditions precedent are satisfied and regulatory approvals are confirmed. This guide walks through each stage, explaining what to investigate, why it matters under Indian law, and how findings translate into contractual protection.

Buyers should read this to understand where hidden liabilities typically sit and how to price or paper around them. Sellers should read it to prepare a clean data room, anticipate buyer objections and preserve deal value. In-house counsel and transaction teams will find an annotated document request list, a red-flag checklist and realistic timelines for resourcing the exercise.

The core message throughout is that to complete due diligence before Indian M&A properly, you must distinguish clearly between pre-signing scope and pre-closing verification, and you must map consent and regulatory approval triggers early, under contractual obligations, FDI policy, competition law, securities regulation and, where relevant, sector-specific regimes.

Quick at-a-glance checklist

Use this condensed checklist as a starting framework. Each item is expanded in the sections that follow.

• Corporate. Corporate structure, constitutional documents, share capital history, board and shareholder approvals, statutory registers.
• Commercial. Key customer and supplier contracts, change-of-control clauses, revenue concentration, assignability.
• Tax. Direct and indirect tax filings, open assessments, transfer pricing exposure, historic disputes.
• Regulatory. FDI/FEMA approval route, Competition Commission of India (CCI) notification thresholds, SEBI takeover obligations for listed targets, RBI approvals for financial services.
• Employment. Employment contracts, statutory registrations, provident fund and gratuity liabilities, ESOPs, union issues.
• Intellectual property. Registered and unregistered IP, ownership and assignment chains, licences.
• Real estate. Title to owned property, lease terms, change-of-control triggers.
• Environmental. Consents, clearances and contamination liabilities.
• IT and data. Software licensing, third-party code, data protection compliance and cross-border transfer.
• Contracts and litigation. Material contracts, pending litigation, contingent liabilities, insolvency exposure.

Treat this as a scoping tool. The depth applied to each category should reflect deal size, sector and the target’s risk profile.

Pre-signing vs pre-closing: how to complete due diligence before Indian M&A in the right sequence

One of the most common structural errors in Indian transactions is treating due diligence as a single block of work completed before signing. In practice, the investigation splits into two distinct phases, each with a different purpose, depth and access level. Understanding this split is central to how you complete due diligence before Indian M&A efficiently.

What is pre-signing due diligence?

Pre-signing due diligence establishes whether the deal is worth doing and on what terms. It is broad in scope, identifies value drivers and deal-breakers, and shapes the representations, warranties and indemnities in the SPA. Access is usually limited to a curated data room, and findings feed directly into price negotiation and risk allocation.

• Focus on material risks that could change price or kill the deal.
• Identify consent and regulatory approval triggers early so timelines can be built into the deal.
• Convert unresolved risks into specific warranties, indemnities or conditions precedent.

What is pre-closing due diligence?

Pre-closing due diligence is confirmatory. Between signing and closing, the buyer verifies that conditions precedent have been satisfied, consent and regulatory approvals obtained and that nothing material has changed. This phase relies on bring-down certificates, updated disclosures and evidence that filings under the Companies Act and regulator-specific regimes have been made.

• Confirm CCI, FDI and any sectoral approvals are in place before completion.
• Verify that no material adverse change has occurred since signing.
• Check that board and shareholder approvals required under the Companies Act have been passed and filed with the Ministry of Corporate Affairs.

Comparison table: pre-signing vs pre-closing

Corporate due diligence: corporate and governance checks

Corporate due diligence in India is where most latent liabilities surface. The Companies Act, 2013 governs corporate structure, approvals and filings, and the Ministry of Corporate Affairs (MCA) is the primary reference point for verifying a target’s corporate housekeeping.

Corporate structure and constitutional documents

Review the memorandum and articles of association, group structure charts and details of subsidiaries, joint ventures and branch offices. Confirm that the entity is validly incorporated, has not been struck off and has filed its annual returns and financial statements with the MCA.

• Check for restrictions in the articles that affect share transfers or require special approvals.
• Map cross-holdings and related-party structures that may complicate ownership.

Ownership and title: shareholder agreements and share capital

Verify the share capital history, allotments, transfers, bonus and rights issues, and reconcile it against statutory registers. Existing shareholder agreements may contain drag-along, tag-along, pre-emption or consent rights that directly affect the ability to complete the transaction.

• Confirm there are no undisclosed encumbrances or pledges over the shares being acquired.
• A red flag: gaps in the share transfer chain or unstamped instruments, can render title questionable. For a private company within the scope of rule 9B of the Companies (Prospectus and Allotment of Securities) Rules, 2014, also verify dematerialisation readiness. The extended 30 June 2025 compliance date for relevant non-small private companies has passed, and a holder proposing to transfer securities after the applicable date must first dematerialise them. Absence of an ISIN or physical holdings can therefore become a closing blocker.

Minutes and board approvals

Major transactions frequently require board and, for certain matters, shareholder approval under the Companies Act. Review minutes to confirm that historic material decisions were properly authorised and that the current transaction will be validly approved.

Material contracts and assignability

Identify contracts that are material to revenue or operations and examine change-of-control and assignment provisions. In a share deal the entity survives, but many Indian commercial contracts contain change-of-control clauses that trigger consent or termination rights.

• Flag contracts requiring counterparty consent as a possible condition precedent.
• Illustrative condition precedent wording (to be validated by counsel): “Receipt of written consent from [counterparty] to the change of control contemplated by this Agreement.”

Litigation and contingent liabilities

Compile a schedule of pending and threatened litigation, arbitration and regulatory proceedings. Where a target is financially stressed, check for insolvency exposure, as proceedings before the National Company Law Tribunal under the Insolvency and Bankruptcy Code, 2016 (with the Insolvency and Bankruptcy Board of India as regulator) can materially alter the risk profile and, in distressed deals, change the acquisition mechanics entirely.

Regulatory and government approvals to watch for in India

Regulatory due diligence in India determines feasibility and timeline as much as legal or commercial findings. To complete due diligence before Indian M&A responsibly, the approval map should be built at the outset, because filings and clearances often dictate the critical path to closing.

FDI, FEMA and DPIIT thresholds and filings

Foreign investment into India is governed principally by the Foreign Exchange Management (Non-Debt Instruments) Rules, 2019 (NDI Rules), as amended, read with applicable Department for Promotion of Industry and Internal Trade (DPIIT) press notes and the RBI’s current foreign-investment and reporting directions. Determine whether the target’s actual activities fall under the automatic route or require prior Government approval, and confirm the applicable sectoral cap and conditions.

• Establish the applicable FDI route and cap for the target’s sector via the DPIIT policy.
• Confirm pricing, mode-of-payment and reporting requirements under FEMA, including the applicable FC-GPR, FC-TRS, Form DI and annual foreign-liabilities-and-assets filings, and test historic downstream investments against the applicable ownership and control conditions.
• A current red flag is an investor ownership or control link to a country sharing a land border with India. Press Note 2 (2026 Series), implemented through the 2026 amendments to the NDI Rules and the RBI reporting framework, revises the beneficial-ownership analysis and introduces reporting for certain direct or indirect land-border-country ownership even where prior Government approval is not required. Trace the investor chain and control rights to the ultimate beneficial owners. Separately, distinguish a delayed filing that may be regularised under the RBI framework from a substantive contravention that may require compounding or approval.

Competition Commission of India: merger control

Combinations crossing the asset or turnover thresholds under the Competition Act, 2002 require notification to the Competition Commission of India (CCI) before completion unless an exemption applies. Under the Competition (Minimum Value of Assets or Turnover) Rules, 2024, the target-based minimum values are INR 450 crore (~USD 48 million) of assets in India and INR 1,250 crore (~USD 132 million) of turnover in India. Separately, a transaction whose value exceeds INR 2,000 crore (~USD 210 million) is notifiable if the target has substantial business operations in India; the target-based minimum-value exclusion does not displace this deal-value threshold.

• Test both screens at the outset. For the deal-value threshold, transaction value can extend beyond the headline purchase price to deferred or contingent consideration, interconnected steps, non-compete payments and certain incidental commercial arrangements.
• Build CCI clearance into the conditions precedent and projected closing timeline. Because the regime is mandatory and suspensory, use clean teams and information-sharing protocols during diligence and integration planning, and avoid operational control before clearance.

SEBI, listed companies and the takeover code

Where the target is listed, the Securities and Exchange Board of India (SEBI) regime applies. The SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 may trigger an open offer obligation, and the SEBI (Prohibition of Insider Trading) Regulations, 2015 constrain how information is handled during diligence. Confirm the acquisition structure against SEBI’s requirements before committing to a public-market transaction.

• Assess whether the acquisition of 25% or more of voting rights, or an acquisition of control even below that level, triggers a mandatory open offer under SEBI’s takeover regulations.
• Manage unpublished price-sensitive information through confidentiality and clean-team arrangements, make entries in the structured digital database where required, and coordinate the timing of trading restrictions and public disclosures.

RBI approvals for financial services targets

If the target is a bank, non-banking financial company or other regulated financial entity, RBI approvals may be required for a change in control or shareholding. These approvals carry their own timelines and fit-and-proper assessments and must be scoped early.

Sectoral regulators

Sectors including telecom, defence, pharmaceuticals, insurance and broadcasting are subject to additional regulators and, frequently, tighter FDI conditions. Identify the relevant sectoral regulator and confirm licensing and change-of-control requirements as part of regulatory due diligence.

Tax due diligence

The Income-tax Act, 2025 and the Income-tax Rules, 2026 came into force on 1 April 2026. Current compliance and the proposed transaction must therefore be reviewed under the new framework, while historic periods, pending assessments and disputes relating to tax years beginning before that date continue to require analysis under the Income-tax Act, 1961 and the transition provisions. Financial diligence should be conducted alongside a chartered accountant or transaction accountant.

Tax exposures, transfer pricing and historic disputes

Review open assessments, appeals and demands, and evaluate transfer pricing arrangements for related-party transactions. Historic disputes and reassessment risk can survive an acquisition and attach to the entity in a share deal.

• Schedule all open tax assessments, appeals and outstanding demands.
• Assess transfer pricing documentation for intra-group transactions.
• A red flag: aggressive positions taken without supporting documentation.

Employment, benefits and labour law checks

India’s four labour codes came into force on 21 November 2025, and Central implementing rules were notified in 2026. Employment diligence must now account for the new codes, the appropriate Government, applicable State rules and the target’s locations and categories of personnel. Labour obligations can remain with the target or transfer with the business and, if mishandled, generate liabilities and disputes post-closing.

Employee contracts, service conditions and transfer obligations

Review standard and key executive contracts, notice periods, restrictive covenants and any retrenchment or transfer obligations applicable to the deal structure. A share acquisition does not ordinarily change the employer, although change-of-control benefits may be triggered. In a business transfer, continuity of service, terms no less favourable and the conditions under the Industrial Relations Code, 2020 require specific analysis.

ESOPs and share schemes

Employee stock option plans may accelerate, vest or require adjustment on a change of control. Confirm the terms of any scheme and quantify the dilution or cash impact on the transaction.

Union and labour issues and statutory registrations

Verify social-security, gratuity and other statutory registrations and payments, and assess union relationships, standing orders, contract labour, working-hours compliance and pending industrial disputes. Test the composition of ‘wages’ under the new framework, including the statutory add-back where excluded remuneration exceeds 50%, because this may increase benefit liabilities and recurring employment cost. Unpaid statutory dues remain a recurring red flag in Indian acquisitions.

IP, IT, data protection and commercial matters

For technology-driven targets, intellectual property and data due diligence often determine the core value being acquired. These checks are indispensable when you complete due diligence before Indian M&A in the technology, media or services sectors.

IP ownership and assignments

Confirm ownership of registered trademarks, patents, designs and copyrights, and verify that key IP created by employees and contractors has been validly assigned to the target. Gaps in the assignment chain are a frequent and serious defect.

Software licences and third-party code

Review the software stack for third-party and open-source components and confirm that licences are compliant and transferable. Non-compliant use of open-source code can create obligations that survive completion.

Data protection compliance

Assess how the target collects, uses, stores and transfers personal data and whether its systems can support notice, consent, rights, retention, deletion, security and breach-response requirements. The Digital Personal Data Protection Rules, 2025 has commenced in phases. As at September 2026, diligence should therefore test both compliance with existing information-technology and CERT-In requirements and the cost and readiness of the target’s DPDP implementation programme, rather than state that the entire new regime is already operative.

Real estate, environmental and insurance checks

Asset-heavy targets require careful review of property, environmental and insurance matters, which can conceal significant contingent liabilities.

Title and lease checks

Verify title to owned property and review lease terms for material sites, paying attention to change-of-control clauses, renewal rights and encumbrances.

Environmental clearances and liabilities

Confirm that required consents and clearances under the framework administered by the Ministry of Environment, Forest and Climate Change and the relevant State Pollution Control Boards are in place, and assess contamination and remediation liabilities that could attach to the buyer.

Insurance cover and claims history

Review the target’s insurance programme and claims history to identify gaps in cover and recurring loss patterns that signal operational risk.

Red flags, risk allocation and negotiation levers

Findings are only useful if they translate into protection. The following red flags, in rough order of severity, should be tested and, where present, addressed through the transaction documents.

1. Defective share title or gaps in the transfer chain.
2. Undisclosed material litigation or insolvency exposure.
3. Missing or non-compliant regulatory approvals (FDI/FEMA, CCI, sectoral).
4. Significant open tax assessments or aggressive tax positions.
5. Change-of-control triggers in key customer or supplier contracts.
6. Unassigned or defective intellectual property ownership.
7. Unpaid statutory employee dues.
8. Environmental non-compliance or contamination liabilities.

Contractual levers to allocate these risks include:

• Representations and warranties. Specific warranties addressing identified risks, backed by disclosure schedules.
• Indemnities. Targeted indemnities for known exposures such as specific tax demands or litigation.
• Escrow. A retained portion of consideration, for example, a percentage held for a defined period, to secure claims. Any escrow amount and period should be validated by counsel against the relevant limitation and risk profile.
• Conditions precedent. Regulatory approvals and third-party consents as conditions to closing.
• Purchase price adjustment. Mechanisms tied to working capital or net debt to reflect the true financial position at closing.

Document request list (DRL): the diligence checklist for Indian M&A

An organised document request list drives an efficient exercise.

• Corporate. Constitutional documents, statutory registers, share capital history, MCA filings, group structure.
• Contracts. Material customer, supplier and financing agreements; contracts with change-of-control clauses.
• Regulatory. Licences, permits, FDI approvals and reporting, sectoral registrations.
• Tax. Direct and indirect tax returns, assessment orders, appeals, transfer pricing documentation.
• Employment. Key employment contracts, statutory registrations, ESOP documents, dispute records.
• Litigation. Schedule of pending and threatened proceedings and correspondence.
• Intellectual property (essential for tech targets). IP registrations, assignment deeds, licences, open-source inventory.
• Real estate and environmental (essential for asset-heavy targets). Title documents, leases, consents and clearances.
• Insurance. Policies and claims history.
• IT and data (essential for data-driven targets). Data protection policies, processing records and cross-border transfer arrangements.

Timelines, team and resourcing

Realistic scheduling avoids the two most common failures: rushing diligence and underestimating regulatory timelines. As a general guide, a small transaction may require several weeks of diligence, a mid-market deal longer, and a large or cross-border transaction considerably longer, with regulatory approvals often the binding constraint on closing. Actual timelines vary widely with deal complexity and sector.

• In-house versus external. In-house teams typically coordinate and prioritise; external counsel handle legal and regulatory analysis; chartered accountants and tax advisers lead financial and tax review.
• Cadence. Weekly status calls and a live issues log keep findings visible and prevent surprises before closing.
• Milestones. Data room opening, first findings report, regulatory filing dates, conditions precedent tracker and bring-down before completion.

Post-closing actions and integration checklist

Completion is not the end of the process. Several statutory and practical steps must follow closing.

Filings, approvals and transfers

• Make the Companies Act filings actually triggered by the transaction, such as filings for director changes, allotments or creation or release of charges, and update the statutory registers.
• Complete the applicable FEMA reporting for foreign investment through the RBI’s current reporting framework within the prescribed timelines.
• Effect board changes and update statutory registers.
• Implement employee actions according to the deal structure: update change-of-control benefits and governance in a share deal, or complete the required transfer, continuity and statutory-registration steps in a business transfer.
• Record IP assignments and update registrations where required.
• Complete tax, GST, licence and sectoral notifications only where the relevant law, registration or approval specifically requires them.

Conclusion

To complete due diligence before Indian M&A successfully, treat the exercise as a disciplined, sequenced process rather than a box-ticking formality. Separate pre-signing investigation from pre-closing verification, map every regulatory approval trigger, FDI/FEMA, CCI, SEBI and sectoral, at the outset, and convert each material finding into concrete contractual protection. Buyers who invest in structured diligence price risk accurately and close cleanly; sellers who prepare thoroughly preserve value and speed. For transaction-specific guidance, engage qualified Indian corporate counsel early and validate all contractual language before signing.