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Non-Disclosure Agreement (NDA) in India: Legality, Section 27 Restraint & Stamp Duty

PS

Priya Sharma

· 7 min read

✓Fact-Checked & Verified · FY 2026-27

When pitching investors, onboarding enterprise clients, hiring freelance engineers, or negotiating acquisition terms, proprietary source code, customer pricing, and algorithms are on the line. While founders routinely download boilerplate NDAs from the internet, many do not realize that overly restrictive clauses are void ab initio under Section 27 of the Indian Contract Act. Here is how to draft an NDA that actually holds up in an Indian commercial court.

★Quick Summary & Key Takeaways
  • ✓Non-Disclosure Agreements (NDAs) are fully legal and enforceable contracts under the Indian Contract Act 1872 and the Specific Relief Act 1963.
  • ✓Under Section 27 of the Indian Contract Act, clauses that restrain employees or contractors from practicing their trade/profession are void; confidentiality clauses must protect trade secrets without becoming illegal non-competes.
  • ✓An NDA must be executed on appropriate state non-judicial stamp paper or e-stamped to be admissible in commercial court.
  • ✓Agreements should provide for interlocutory injunction relief under Order XXXIX of the Code of Civil Procedure (CPC) to halt leaks before damages become irreparable.

The legal foundation of NDAs under Indian Contract Act 1872

In India, there is no standalone 'Trade Secrets Act'. Proprietary data and business secrets are protected through common law principles of equity and contract law under the Indian Contract Act 1872.

A valid NDA requires: mutual consent, competent parties, lawful consideration (even nominal mutual disclosure or consideration of employment/engagement), and lawful object under Section 10.

Section 27: The thin line between confidentiality and illegal restraint of trade

The most common legal mistake in Indian NDAs is smuggling in post-termination non-compete covenants that violate Section 27:

Section 27 of the Indian Contract Act 1872 states: 'Every agreement by which anyone is restrained from exercising a lawful profession, trade or business of any kind, is to that extent void.'

Unlike in the US or UK, where 'reasonable restraints' are permitted, the Supreme Court of India (Percept D'Mark v. Zaheer Khan, Niranjan Shankar Golikari v. Century Spinning) has ruled that post-employment non-compete clauses are completely void in India.

However, confidentiality obligations and protection of proprietary trade secrets during and after employment are 100% legal and enforceable, provided they do not prevent the individual from working in their field.

Contractual CovenantIndian Court StandingLegal Precedent & Section
Protection of Trade Secrets & Source CodeFully Enforceable indefinitelyNiranjan Shankar Golikari v. Century Spinning
Non-Disclosure of Client Lists & PricingFully Enforceable for reasonable durationSection 10 Indian Contract Act
Post-Termination Non-Compete (Ban on joining rival)Void Ab Initio (Unenforceable)Section 27; Percept D'Mark v. Zaheer Khan
Non-Solicitation of EmployeesEnforceable if narrowly tailoredWipro Ltd. v. Beckman Coulter International
Interlocutory Injunction RemedyAvailable upon demonstrating irreparable harmOrder 39 CPC & Specific Relief Act 1963

Unilateral vs Mutual NDA: Which should you execute?

• Unilateral (One-Way) NDA: Used when only one party discloses confidential information (e.g. an agency showing a proprietary design to a client, or a company revealing codebase to an intern).

• Mutual (Bilateral) NDA: Used when both parties share confidential information (e.g. joint venture discussions, M&A due diligence, tech integration partnerships). Mutual NDAs create balanced reciprocal obligations.

Stamp Duty Requirement for Legal Admissibility

An NDA executed on plain paper without stamp duty cannot be admitted as evidence in an Indian court under Section 35 of the Indian Stamp Act 1899. Always execute NDAs on state non-judicial stamp paper or via e-stamping (typically ₹100 to ₹500 depending on state).

8 critical clauses every Indian NDA must include

1. Precise Definition of Confidential Information: Avoiding vague catch-alls.

2. Standard Carve-Outs: Information publicly known, already in recipient's possession, or required by law/court order.

3. Standard of Care: Must treat disclosed data with same degree of care as recipient's own confidential info (minimum reasonable care).

4. Term & Survival Period: Typically 2 to 5 years (trade secrets and source code should survive indefinitely).

5. Mandatory Return or Destruction of Data: Written certificate of deletion upon termination.

6. Injunction Relief Clause: Acknowledging that monetary damages alone are insufficient.

7. Dispute Resolution: Arbitration under the Arbitration and Conciliation Act 1996.

8. Governing Law: Indian laws with exclusive court jurisdiction in a specific city.

Frequently Asked Questions

Is an NDA signed electronically (via DocuSign or Aadhaar eSign) valid in India?

Yes. Under Section 10A of the Information Technology Act 2000, contracts formed electronically through digital signatures or electronic signatures are legally valid and enforceable in Indian courts.

How long should an NDA last in India?

For commercial negotiations and pricing, standard duration is 2 to 3 years from the date of disclosure. For proprietary source code, algorithms, and trade secrets, the confidentiality obligation should survive indefinitely or for as long as the information remains a trade secret.

What happens if someone breaches an NDA in India?

The aggrieved party can file a civil suit for: (1) Temporary and permanent injunctions under Order 39 of the CPC to prevent further leak; (2) Compensatory damages for financial loss; (3) Criminal breach of trust under Section 316 of the Bharatiya Nyaya Sanhita (BNS) / Section 405 IPC.

Does an NDA require notarization?

Notarization is not legally required for an NDA in India to be valid. However, paying the requisite state stamp duty (e-stamping) is mandatory for the contract to be admissible as evidence in court.

PS

Priya Sharma

Corporate Legal & Compliance Counsel

Specializing in commercial contract litigation, Section 138 NI Act recovery, commercial property leases, and MSMED Act compliance.

🛡️ Reviewed by Dyopact Legal & Tax Compliance Desk·Statutory reference: Central Board of Indirect Taxes & Customs (CBIC) & Income Tax Dept
Statutory Legal & Tax Disclaimer: This article is published for informational and operational enablement purposes under Indian commercial and indirect tax laws. It does not constitute formal legal opinion or chartered accountancy counsel. Tax policies, interest formulas, and notification thresholds are governed by the statutory circulars of the GST Council, CBIC, and Ministry of Micro, Small and Medium Enterprises. Consult a certified Chartered Accountant (CA) or commercial legal advocate for transaction-specific advisory.