Written by Devendra Kumar Malhotra, Registered Valuer under the Companies Act 2013 | Reviewed by Sapient Services’ Valuation Team, New Delhi | Last Updated: September 2026

You’ve found a deal worth pursuing. The financials look clean, the seller sounds confident, and your instinct says yes. That’s exactly the moment due diligence exists for — not to slow you down, but to check whether what you’ve been told holds up before you sign anything binding.

Due diligence is the structured investigation you run before committing to a business transaction. It verifies what you’ve been told, surfaces what you haven’t, and gives you a basis to negotiate, restructure, or walk away — while you still can.

India’s M&A market crossed USD 123.8 billion in deal value in 2025, up 18% from USD 106.3 billion in 2024 (EY India M&A Report). At that scale, skipping proper investigation isn’t a shortcut. It’s a risk you’re taking on knowingly, one that tends to surface only after the deal closes.

Whether you’re a promoter planning a cross-border acquisition, a bank evaluating project finance, an NCLT-appointed Resolution Professional under IBC 2016, or a founder receiving your first institutional check — due diligence is what separates an informed decision from an expensive assumption.

Need due diligence support for an upcoming transaction?

Visit sapientservices.com or call +91 9540162888 — Sapient Services, New Delhi

Quick Answer: What Is Due Diligence?

Due diligence is the process of independently verifying all material facts about a business, asset, or transaction before you commit to it. In India, that means checking financial records, legal compliance, operational health, tax obligations, IP ownership, and regulatory standing — across the Companies Act 2013, FEMA, SEBI, IBC 2016, and whichever sector regulator applies.

Who does it: The buyer or investor, working with Chartered Accountants, lawyers, IBBI-registered valuers, and technical specialists as needed.

When it happens: After the Letter of Intent is signed, before the Sale Purchase Agreement is executed.

How long it takes: Varies by deal size, number of entities, and document readiness. A straightforward review can take a few weeks; scheme-of-arrangement structures under Sections 230–232 of the Companies Act, which need NCLT approval, take considerably longer.

What Due Diligence Actually Means — and Why It’s Often a Legal Requirement

Due diligence, at its core, is the degree of care a reasonable person is expected to exercise before entering a contract or transaction. That’s the legal origin of the term, and it still shapes how courts and regulators think about it.

In India, it’s frequently not optional. Section 247 of the Companies Act 2013 requires any valuation under the Act — including share and asset valuations tied to NCLT-approved merger schemes — to be carried out by a registered valuer. SEBI’s Takeover Code requires its own set of disclosures and procedural steps once an open offer is triggered, including a reasoned recommendation from the target company’s independent directors under Regulation 26. Under IBC 2016, prospective resolution applicants typically run their own diligence on a corporate debtor using the information memorandum and other information made available through the resolution process before submitting a plan to the Committee of Creditors.

Strip away the compliance angle, and due diligence is answering one question: is what I’m being told actually true? Evidence, not assurances, is what separates a well-structured deal from a costly one.

Who Needs Due Diligence — and What Happens If You Skip It

Due diligence isn’t reserved for large corporates and investment banks. Here’s who relies on it most in India, and why.

Skipping it doesn’t always blow up the deal. But when it does, it tends to be expensive, and the damage usually surfaces after closing — when there’s far less room to fix it. A change-of-control clause buried in a lease or supplier contract, an unassigned patent, a tax demand nobody flagged: none of these show up if nobody goes looking for them before the money moves.

(If Sapient has a real, anonymised case we can reference here — a specific finding from an actual engagement — it would make this section considerably stronger than the general point above. Ask if you’d like to supply one.)

The 10 Types of Due Diligence — What Each One Actually Covers

A properly structured investigation runs several of these workstreams in parallel, each with its own specialist leading it.

1. Financial Due Diligence

Financial diligence validates historical performance and future projections, and its central deliverable is the Quality of Earnings (QoE) report — a normalized view of earnings after stripping out one-time items, owner perquisites, and accounting distortions. It’s often the document that price renegotiations trace back to.

In India, this also means checking Ind AS compliance, GST return reconciliation, MCA/ROC-filed financials, and tax assessment history. The Income-tax Act, 2025 applies from April 1, 2026, and reorganised the section numbering for slump sales, amalgamation loss carry-forward, and transfer pricing — but historical tax periods and pending matters can still fall under the 1961 Act’s transitional provisions, so reports need to distinguish which law applies to which period rather than defaulting to the new numbering everywhere.

• Revenue quality — recurring vs. one-time, customer concentration, retention rates
• Working capital normalization — cash actually required to run the business post-acquisition
• Debt structure — term loans, working capital facilities, contingent liabilities
• GST compliance — input credit claims, pending demands
• Deferred tax liabilities and advance tax positions

Fees for this workstream scale with deal size and the number of entities involved, and a compressed timeline typically costs more than a normal one. (If you want an actual fee range quoted here, give me Sapient’s real numbers rather than an industry estimate — it’ll carry more weight and won’t need a caveat like this one.)

2. Legal Due Diligence

This is where deals quietly fall apart. In India, legal diligence has to cover the Companies Act 2013 (Sections 129, 133, 134, 177, 178, 230–232), FEMA 1999, SEBI LODR Regulations 17–27 and 23, and the Insolvency and Bankruptcy Code 2016.

The single most dangerous risk here is the change-of-control clause — a term in a supplier, customer, or landlord contract that lets the counterparty terminate the moment ownership changes. It won’t show up in a financial statement. It only surfaces when a lawyer actually reads the contract. These clauses have ended revenue-significant relationships overnight, post-closing.

• ROC filings, DIN verification, board resolutions, shareholder agreements
• SEBI compliance — LODR obligations, Regulation 24A secretarial audit reports
• FEMA compliance — FDI/ODI approvals, RBI filings
• Material contracts reviewed specifically for change-of-control and assignment restrictions
• Pending, threatened, and historical litigation, including NCLT/NCLAT matters
• Labour law compliance — Industrial Disputes Act, PF, ESIC, and state-specific rules

Findings here usually shape how representations and warranties in the SPA get negotiated — indemnity caps and escrow terms are typically a direct response to what legal diligence turns up.

3. Operational Due Diligence

Operational diligence looks inside the business: processes, systems, supply chain, infrastructure, management depth. The question it answers is simple — if you acquire this business today, what are you actually stepping into?

Indian manufacturing businesses often carry risks that don’t show up in financials: plant and machinery booked at historical cost but nowhere near current condition, vendor concentration in a single state, informal arrangements with workers, and ERP systems that won’t integrate with the buyer’s stack. These only surface through site visits and technical inspection.

• Supply chain — vendor concentration, single-source dependencies
• Plant condition and capacity utilization — verified by chartered engineers on-site
• ERP and IT systems — integration readiness, licensing status
• Management depth — key person dependency, succession planning

4. Commercial Due Diligence

Commercial diligence looks outward: market position, competitive dynamics, customer concentration, revenue sustainability. Can the business actually grow, or is the growth story built on a shrinking base?

5. Tax Due Diligence

Tax diligence is chronically underestimated in Indian mid-market deals. Companies routinely carry GST demands under objection, tax assessments pending at the CIT(A) or ITAT stage, transfer pricing exposure, and MAT credits — none of it visible from audited financials alone.

With the Income-tax Act, 2025 in force from April 2026, the section references for slump sales and amalgamation loss carry-forwards have changed for the current period — but opinions covering earlier tax years may still need to reference the 1961 Act under the transition provisions. Don’t assume the new numbering applies retroactively without checking. See our M&A tax considerations guide for the fuller framework.

6. Environmental Due Diligence

In manufacturing, real estate, mining, and chemicals, environmental liabilities can be large and completely invisible until someone looks. In India, this means checking Environment Protection Act 1986 approvals, pollution control board consents, hazardous waste authorizations, and EIA clearances for the specific site.

These liabilities are the kind that don’t show up until someone with a technical background actually walks the site — which is exactly why environmental review needs a chartered engineer or environmental specialist on the ground, not just a document check.

7. IT & Cybersecurity Due Diligence

Cybersecurity has moved from a niche checkbox to a standard part of most M&A processes over the last few years — the direction of travel is well documented, even if exact adoption percentages vary by survey. (One figure previously used here — a specific before/after percentage — couldn’t be traced to a verifiable source and has been removed rather than left unchecked.)

In India, the DPDP Act 2023 — along with the Digital Personal Data Protection Rules, 2025, notified in November 2025 and commencing in phases — adds a layer that diligence teams need to check specifically: what personal data the target processes, on what lawful basis, and what its consent and security practices look like. IT diligence otherwise covers system architecture, licensing validity, and vulnerability exposure, with CERT-In’s six-hour incident-reporting requirement a relevant reference point for any target that’s had a security incident.

8. HR & Cultural Due Diligence

Cultural incompatibility is one of the most commonly cited reasons M&A integrations underperform — it comes up constantly in dealmaker surveys and post-mortems, though the specific percentage attributed to it varies by source, so treat any single figure with some caution.

HR diligence covers employment contracts, compensation benchmarking, ESOP plans and their SEBI compliance, statutory contributions (PF, ESIC, gratuity), and — a real gap in many Indian mid-market companies — the line between formal and informal workforce arrangements.

If the founders won’t stay, the thing you paid for walks out the door. If operational teams can’t reconcile different management styles, integration stalls. This is the one workstream that tells you whether the deal will actually function after it closes.

9. Intellectual Property Due Diligence

For technology companies, SaaS platforms, and brand-driven businesses, IP can represent most of the deal value. IP diligence in India checks registrations under the Trade Marks Act 1999, Patents Act 1970, and Copyright Act 1957 — and, critically, confirms that IP was formally assigned from founders, employees, and contractors to the company itself.

This is a recurring risk in Indian tech and SaaS transactions specifically: IP the founder built personally, before incorporation, that was never formally assigned to the company — meaning it may not legally belong to the entity being acquired.

10. ESG Due Diligence

SEBI’s BRSR framework applies to the top 1,000 listed companies by market capitalisation, and it’s set a disclosure baseline — carbon footprint, supply chain labour standards, governance quality, CSR compliance under Section 135, board diversity — that some institutional investors now expect to see referenced even in private transactions. Whether ESG diligence is a real requirement or a nice-to-have depends entirely on who’s on the other side of the table: a domestic strategic buyer may not ask for any of it, while an EU-linked institutional investor may bring its own supply-chain accountability expectations to the table.

Running a deal and need multi-workstream diligence support?

Our team has handled assignments across power, manufacturing, NBFC, real estate, and pharma. Contact: valuation@sapientservices.com

The Due Diligence Process in India

Due diligence isn’t a single event — it’s a phased investigation that in India has to account for several regulatory timelines running at once. A share purchase with no CCI filing required can move fairly quickly. A scheme of arrangement under Sections 230–232, which needs NCLT approval, or a cross-border merger under Section 234, will take considerably longer regardless of how fast the diligence itself moves.

A well-organized data room, by itself, tells you something about the management team you’re acquiring — it’s often the first genuine signal in the process, long before anyone reviews a single contract.

The most intensive stretch is Phase 3. Financial models get stress-tested, every material contract gets checked for non-standard terms, and site visits happen — especially for manufacturing, real estate, and infrastructure assets where physical condition has to be verified independently of what the balance sheet says.

Findings from Phase 4 don’t automatically kill a deal, but they should shape it. Price reductions, escrow holdbacks, earnout structures, and enhanced indemnification all flow directly from what this stage turns up.

At Phase 5, required approvals get pursued: a CCI combination analysis weighing the applicable asset, turnover, and deal-value thresholds and any available exemptions, SEBI’s open-offer assessment where relevant, NCLT approval for scheme-based deals, and RBI/FEMA clearance for cross-border elements.

What Makes Due Diligence in India Different

Buyers who apply a standard international framework without adapting it to India’s multi-regulator environment run into problems that were entirely avoidable.

Common red flags that surface in Indian transaction due diligence include undisclosed GST demands under appeal, ROC filing gaps under Section 134, informal employment arrangements where key operators sit on a related entity’s payroll, and IP that was never formally assigned to the company. None of these tend to show up in audited financials alone.

From the Field: What Skipped Diligence Actually Costs

HP paid USD 11.1 billion for Autonomy, a UK software company, in 2011. Within a year, it wrote down USD 8.8 billion, alleging Autonomy had misrepresented its value — including booking hardware sales as software revenue. HP’s own CFO at the time, Cathie Lesjak, later testified in the London trial that she never read KPMG’s due diligence report on Autonomy before the deal closed; it was the only external diligence HP commissioned.

In July 2025, the UK High Court ordered Lynch’s estate and former Autonomy CFO Sushovan Hussain to pay HPE roughly £740 million (~USD 940 million) — well below the USD 4–5 billion HPE had originally sought. The final damages figure isn’t really the point. What matters is that a report existed, went unread, and years of alleged revenue misclassification went uncaught before an $11 billion commitment. Deal momentum isn’t a substitute for someone actually reading the file.

(A real, anonymised Sapient case would sit well right above this one — if you have one you’re comfortable publishing, send it over and I’ll slot it in ahead of the HP example rather than replacing it.)

Have a deal situation similar to what you read above?

Our team has worked on IBC resolutions, cross-border M&A, and bank TEV studies. Reach us: +91 9540162888 | valuation@sapientservices.com

Common Mistakes — and How to Avoid Them

• Rushing to beat a competing bidder. Artificial time pressure is the single biggest driver of diligence failure. If you can’t negotiate more time, price the compressed risk explicitly into your offer.
• Not acting on findings. HP had a KPMG diligence report on Autonomy. The CFO received it and never read it. A report is worthless if the findings don’t shape the negotiation.
• Missing change-of-control clauses. These live in supplier contracts, customer agreements, and leases. A review that isn’t specifically looking for them will miss them.
• Treating cultural fit as a formality. Given how often integration failures get traced back to culture, skipping this isn’t minor negligence — it’s a known, high-probability risk.
• Ignoring IP assignment gaps. Especially in Indian tech and SaaS deals: if the founder built the core technology before incorporation, that IP may not legally belong to the company being acquired.
• Relying solely on central labour laws. India has state-specific industrial legislation. A review that only checks the Contract Labour Act and the Industrial Disputes Act, without state-level Shops & Establishments Act compliance, will miss material non-compliance.
• Not verifying GST separately from the statutory audit. A statutory audit gives reasonable assurance that financial statements are free of material misstatement — it isn’t a guarantee, and it doesn’t check GST return reconciliation, pending demand orders, or ITC reversal obligations. That’s a separate workstream.

What Experienced Acquirers Do Differently

Start with the customer list, not the financial statements. Customer concentration, contract tenure, and retention data tell you more about a business in 20 minutes than the P&L does in two hours. If the top 3 customers are over 40% of revenue with no long-term contracts, the model is fragile regardless of what the income statement says.

Send a chartered engineer for asset-heavy businesses — not just an accountant. Book value tells you what was paid for machinery. A site inspection tells you what it’s actually worth today and what needs replacing in the next three years. For Indian manufacturing acquisitions, these two numbers are routinely very different.

Talk to the seller’s key employees, not just the founders. The CFO, the head of sales, and the plant manager often know things the promoter doesn’t know — or won’t say. A conversation framed as integration planning, not investigation, tends to surface more than the data room ever will.

Stress-test the growth projection by working backwards. If the model projects 20% CAGR, ask what that requires: how many new customers, at what acquisition cost, at what conversion rate. Most mid-market projections don’t survive this exercise.

Build the integration plan during diligence, not after. If ERP incompatibility surfaces as a finding, the migration plan should already be resourced by the time you close. Waiting until post-close to plan for what diligence already told you is where a lot of deal value quietly leaks away.

Complete Due Diligence Checklist for India M&A (2026)

Adapt scope to deal size, sector, and whether the target is listed, foreign-invested, or IBC-distressed.

Frequently Asked Questions

What does due diligence mean in simple terms?

It means doing your homework before a major financial commitment — independently verifying the facts about a business or asset before you sign anything or transfer money. Legally, it refers to the reasonable care a person is expected to take before entering a transaction.

Who conducts due diligence in India?

A typical team includes a Chartered Accountant firm for financial and tax work, an M&A law firm for legal review, IBBI-registered valuers for share swap ratios and IBC-related work, chartered engineers for technical assessment of asset-heavy businesses, and HR consultants for cultural and workforce analysis. Cross-border deals add FEMA specialists and merchant bankers.

What is the scope of due diligence in a typical transaction?

Scope is set during preparation, before the LOI, and depends on deal size, sector, and structure. A straightforward share purchase may only need financial, legal, and tax review. An IBC resolution, cross-border merger, or listed-company acquisition adds operational, IP, ESG, and regulatory workstreams on top of that.

What are the due diligence requirements for an Indian M&A deal?

Requirements aren’t about finding a “clean” file — they’re about identifying and pricing whatever risk exists. Every transaction needs verified financials, a legal and regulatory history review, and confirmed tax positions. Listed targets add SEBI LODR and SAST compliance; IBC-linked deals bring NCLT and IBBI-specific requirements into the mix.

How long does due diligence take in India?

It depends heavily on deal size, number of entities, and document readiness. A scheme of arrangement under Sections 230–232 or a cross-border merger under Section 234 takes materially longer than a straightforward unlisted share purchase, mainly because of the NCLT and regulatory approval steps layered on top — not the diligence work itself.

How much does due diligence cost in India?

Fees are scope-based: they depend on transaction size, the number of entities and workstreams involved, industry, and how organized the seller’s data room is going in. There isn’t a reliable flat benchmark worth quoting here — ask for a scoped estimate against your specific transaction.

What is a Quality of Earnings (QoE) report?

It’s the core deliverable of financial due diligence — a normalized view of earnings after removing one-time items and adjusting for accounting inconsistencies. In Indian deals, this commonly involves reversing capitalized maintenance costs and normalizing related-party transactions. It’s frequently the document a price renegotiation traces back to.

What’s the difference between due diligence and a statutory audit?

An audit gives reasonable assurance that a company’s financial statements are free of material misstatement, for a defined reporting period. Due diligence is transaction-specific — it looks at whatever risk matters for this deal, financial and otherwise, and doesn’t stop at the financial statements. One doesn’t substitute for the other; a target can be audit-clean and still carry deal-specific risk an audit was never designed to catch.

What is Enhanced Due Diligence (EDD)?

A deeper level of investigation for higher-risk counterparties — high-value transactions, Politically Exposed Persons, complex ownership structures, or high-risk sectors. In India, it’s required under the Prevention of Money Laundering Act 2002 for financial institutions, and is increasingly standard in cross-border private equity deals.

What are the most common red flags in Indian due diligence?

Undisclosed GST demands or tax assessments under appeal, revenue that looks suspiciously smooth against industry volatility, customer concentration above 30–40% with no long-term contract, unassigned founder IP, ROC filing gaps, informal workforce arrangements, and FEMA non-compliance in foreign-invested entities.

Can due diligence findings kill a deal?

Yes. Material findings can lead either side to renegotiate price or terms, add closing conditions or indemnity protections, delay closing, or walk away entirely. More often they reshape the deal rather than end it — price adjustments, escrow holdbacks, and earnout structures tied to post-closing performance are the typical outcomes.

Does Sapient Services provide due diligence services?

Yes — financial, operational, and technical due diligence for M&A, bank lending, private equity, and corporate restructuring. Our team includes IBBI-registered valuers, chartered engineers, and transaction specialists with over four decades of combined experience across power, manufacturing, infrastructure, financial services, pharmaceuticals, and real estate, working from New Delhi on assignments across India and 16+ countries. See our due diligence services in Delhi and due diligence services in Mumbai pages for workstream-level detail.

Where to Go From Here

If you’re heading into a transaction, don’t start with a generic checklist — start with what’s specific to your deal. For an asset-heavy acquisition, that means a chartered engineer on-site before you finalize terms. For a founder-led tech business, it means confirming IP assignment before anything else. For anything IBC-linked, it means building in NCLT timelines from day one, not discovering them halfway through.

The real cost of due diligence isn’t the fee. It’s what you don’t find out if you skip it — and by definition, you don’t know what that number is until it’s too late to negotiate around it.

Need due diligence support for your next transaction?

Sapient Services Pvt. Ltd. | IBBI Registered Valuers | New Delhi

+91 9540162888 | valuation@sapientservices.com | sapientservices.com

Sapient House, S-15, Pocket S, Okhla Phase II, New Delhi — 110020