Electronic Signatures in India: What Is Legally Valid Under the IT Act
Rohit Menon
· Founder & Product Architect· 3 min read
Electronic signatures are not a convenience with legal risk attached; they are expressly recognised. What matters is which kind you use, because a typed name in a PDF and an Aadhaar eSign have very different evidentiary weight.
- ✓Section 5 of the IT Act 2000 equates a compliant electronic signature with a handwritten one.
- ✓Two recognised types: digital signature certificates and Aadhaar eSign.
- ✓Certain documents are excluded by the First Schedule and still require wet signatures.
- ✓A tamper-evident audit trail is what makes the signature defensible, not the image.
The statutory basis
Section 5 of the Information Technology Act 2000 provides that where any law requires information to be authenticated by affixing a signature, that requirement is satisfied by an electronic signature affixed in the manner prescribed.
Section 3A and the Second Schedule specify the techniques recognised, and the Act's framework around certifying authorities supplies the trust infrastructure.
The two recognised methods
1. Digital Signature Certificate: issued by a licensed certifying authority, based on asymmetric cryptography, held on a hardware token. Required for statutory filings such as MCA and income tax where prescribed.
2. Aadhaar eSign: an online service where the signer authenticates by Aadhaar OTP or biometric, and a certifying authority issues a one-time key pair for that transaction. Convenient, auditable, and widely used for commercial contracts.
Both produce a cryptographically verifiable signature. What they do not require is possession of a physical token in the case of eSign, which is why adoption has been rapid.
What cannot be signed electronically
The First Schedule to the IT Act excludes certain instruments: negotiable instruments other than cheques, powers of attorney, trusts, wills and testamentary dispositions, and contracts for the sale or conveyance of immovable property.
These still require traditional execution, and in several cases registration and stamping besides. The exclusion list is short but absolute.
What makes a signature hold up
Evidentiary strength comes from the audit trail rather than the visual signature: who signed, when, from what IP address, authenticated by what method, and a hash of the document at the moment of signing that demonstrates it has not been altered since.
Section 65B of the Evidence Act governs admissibility of electronic records and requires a certificate. A signing platform that cannot produce that certificate and the underlying trail is of limited use when the document is challenged.
Frequently asked questions
### Is an electronic signature legally valid in India?
Yes, under Section 5 of the IT Act 2000, provided it uses a recognised technique — a digital signature certificate or Aadhaar eSign. A typed name or a pasted image of a signature does not meet the statutory requirements, though it may still evidence agreement in a contractual sense.
### Which documents cannot be signed electronically?
Those listed in the First Schedule to the IT Act: negotiable instruments other than cheques, powers of attorney, trusts, wills and testamentary dispositions, and contracts for sale or conveyance of immovable property.
### What is the difference between a digital signature and an eSign?
A digital signature certificate is issued to an individual for a period, typically held on a hardware token. Aadhaar eSign issues a one-time key pair for a single transaction after Aadhaar authentication. Both are legally recognised; eSign is more convenient, DSC is required for certain statutory filings.
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Frequently Asked Questions
Is an electronic signature legally valid in India?
Yes, under Section 5 of the IT Act 2000, provided it uses a recognised technique — a digital signature certificate or Aadhaar eSign. A typed name or a pasted image of a signature does not meet the statutory requirements, though it may still evidence agreement in a contractual sense.
Which documents cannot be signed electronically?
Those listed in the First Schedule to the IT Act: negotiable instruments other than cheques, powers of attorney, trusts, wills and testamentary dispositions, and contracts for sale or conveyance of immovable property.
What is the difference between a digital signature and an eSign?
A digital signature certificate is issued to an individual for a period, typically held on a hardware token. Aadhaar eSign issues a one-time key pair for a single transaction after Aadhaar authentication. Both are legally recognised; eSign is more convenient, DSC is required for certain statutory filings.
Rohit Menon
Founder & Product ArchitectArchitecting business document operating systems and automated billing workflows for Indian SMBs, agencies, and enterprises.