HR
Offer letters, NDAs, onboarding paperwork, employment contracts.
Aadhaar eSign — included on every plan
Legally valid Aadhaar eSign at ₹20 per signature. Flat rate.
The fastest legally robust way to sign documents in India. Powered by a CCA-licensed eSign Service Provider, consistent with the IT Act 2000 Section 3A.
- CCA-licensed ESP
- UIDAI eKYC
- IT Act 2000 § 3A
- OTP authentication
What is Aadhaar eSign
India's government-backed mechanism for legally valid digital signatures.
Aadhaar eSign lets any of India's 1.4 billion Aadhaar holders place a legally valid digital signature on a document using just their Aadhaar number and a one-time password sent to their Aadhaar-linked mobile. No hardware token, no software install, no in-person verification.
It's not the same as a scanned signature — which is just a picture — or a wet signature, which requires physical paper. And it's not a DSC (Digital Signature Certificate) token, which costs ₹1,500–3,000 and needs a USB device. Aadhaar eSign sits between those: stronger than a scan, cheaper than a DSC, legally valid for most contracts.
The cryptographic signing is performed by a CCA-licensed eSign Service Provider — one of a handful of entities authorised by the Controller of Certifying Authorities, Government of India, to issue digital signatures based on Aadhaar eKYC. Accordsign routes signing requests to a licensed ESP; we don't perform the cryptography ourselves.
How Aadhaar eSign works
- 1
Enter Aadhaar number
The signer enters their 12-digit Aadhaar number on the secure signing page.
- 2
Verify with OTP
UIDAI sends a one-time password to the signer's Aadhaar-linked mobile.
- 3
Document is signed
The licensed eSign Service Provider applies the cryptographic signature.
- 4
Legally valid
A tamper-evident, audit-ready signature under the IT Act 2000, Section 3A.
Signing is performed by a CCA-licensed eSign Service Provider authorised by the Government of India — consistent with the IT Act 2000, Section 3A.
What it costs
₹20 per signature. Flat. Forever.
Aadhaar eSign credits are separate from your document quota. Buy any quantity from your billing dashboard — from a single signature to thousands. Credits are valid for 12 months from purchase.
No tiers, no minimums, no commitment — Aadhaar eSign is a flat ₹20 a signature.
You pay the same rate whether it's your first signature this month or your thousandth. Buy exactly the credits you need, when you need them, and budget against a number that never moves.
See full pricing
Flat pricing
No hidden charges
Valid for 12 months
Use anytime within a year
Scales with you
From 1 signature to thousands
What you can sign
Most business contracts in India. Aadhaar eSign is legally valid for these.
Finance
Loan agreements, KYC forms, account opening documents.
Legal
Service contracts, vendor agreements, MSAs, consultancy agreements.
Commercial
Rental agreements (with appropriate stamp paper where state law requires), partnership deeds.
What you cannot sign
The honest list of where Aadhaar eSign doesn't apply.
Indian law excludes a small set of document types from electronic signing — Aadhaar eSign included. Most competitors don't say this out loud. We will.
- !
Wills and testamentary documents
- !
Negotiable instruments (cheques, promissory notes) — except for specifically regulated cases
- !
Powers of attorney for property registration
- !
Real-estate sale deeds (state-law dependent — some states require wet signature plus stamp duty)
- !
Trust deeds in most states
When in doubt, consult a lawyer. Aadhaar eSign is legally valid for most contracts in India, but a small set of document types is excluded by Indian law. The list above isn't exhaustive — your specific use case may have additional constraints under state legislation.
Aadhaar eSign vs DSC
Which signature type do you actually need?
Two different tools for two different jobs. Here's the short version.
Aadhaar eSign
Best for B2C contracts and most B2B agreements. No hardware. Signer authenticates with an OTP on their Aadhaar-linked mobile.
- ₹20 per signature, flat rate
- No hardware, no install
- Works on any device with internet
- Valid under IT Act 2000 Section 3A
DSC token
Required for GST filings, MCA submissions, government tenders, customs, and IT department uploads. Hardware-based.
- ₹1,500–3,000 one-time + annual renewal
- USB token required
- Only on Windows + specific browsers
- Required by Indian government portals
Decision rule
For HR, sales, vendor, and most internal contracts → Aadhaar eSign.
For statutory filings (GST, MCA, customs) → DSC.
The compliance story
Why an Aadhaar eSign on Accordsign holds up in court.
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Performed by a CCA-licensed eSign Service Provider
The cryptographic signing is done by one of a handful of entities authorised by the Controller of Certifying Authorities (CCA), Government of India, to issue digital signatures based on Aadhaar eKYC. Accordsign routes signing requests to a licensed ESP; we never perform the cryptography ourselves.
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Consistent with the IT Act 2000, Section 3A
Section 3A of the Information Technology Act 2000 recognises electronic signatures authenticated with Aadhaar as legally equivalent to handwritten signatures, subject to the rules notified by the Central Government.
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Admissible as evidence under Indian law
Bharatiya Sakshya Adhiniyam 2023 Section 63 (formerly Indian Evidence Act Section 65B) makes Aadhaar-signed electronic records admissible as evidence in Indian courts when accompanied by their audit trail. Accordsign generates that audit trail automatically for every envelope.
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Aadhaar data never touches Accordsign servers
Signers enter their Aadhaar number directly into a form served by the licensed ESP. UIDAI authentication, OTP delivery, and the cryptographic signing all happen at the ESP. Accordsign receives only the signed document and audit trail — never the underlying Aadhaar data.
For more on how Accordsign handles data protection, encryption, and access control, see our Security page.
FAQ
Aadhaar eSign, answered.
- Is Aadhaar eSign legally valid in India?
- Yes. Aadhaar eSign is a recognised electronic signature technique under Section 3A of the Information Technology Act 2000, with corresponding evidentiary recognition under Section 63 of the Bharatiya Sakshya Adhiniyam 2023 (formerly Section 65B of the Indian Evidence Act). Aadhaar-signed electronic records are admissible in Indian courts when accompanied by the audit trail issued by the eSign Service Provider.
- Do I need to link my mobile to my Aadhaar to use this?
- Yes — the signer must have an active mobile number linked to their Aadhaar in UIDAI's records, because UIDAI delivers the OTP to that mobile. If the linked mobile is unreachable or the link is outdated, the signer cannot complete Aadhaar eSign. Linkage can be updated at any Aadhaar Seva Kendra or via the mAadhaar / myAadhaar portal.
- What happens if the signer's Aadhaar mobile isn't reachable?
- The signing attempt fails — UIDAI cannot deliver the OTP, so the document does not get signed. The sender can either follow up with the signer to update their UIDAI mobile linkage, or fall back to a regular signature field (without Aadhaar) if the document does not legally require Aadhaar-level authentication.
- Can NRIs or non-Indian citizens use Aadhaar eSign?
- Aadhaar eSign requires a valid Aadhaar number linked to a working mobile. NRIs who hold an Aadhaar and have it linked to a reachable mobile (including international roaming) can use it, but in practice delivery to overseas numbers can be unreliable. Non-Indian citizens without Aadhaar cannot use Aadhaar eSign — they should use the standard signature field, which remains legally valid under the IT Act 2000.
- Is my Aadhaar data stored by Accordsign?
- No. Aadhaar numbers and OTPs never touch Accordsign servers. The signer enters their Aadhaar number directly into a form served by our licensed eSign Service Provider; UIDAI authentication and the cryptographic signing happen entirely at the ESP. Accordsign receives only the signed document and the audit trail, never the underlying Aadhaar data.
- What's the difference between Aadhaar eSign and Aadhaar eKYC?
- Aadhaar eKYC verifies identity — it confirms "this person is who they say they are" by checking name, DOB, and photo against UIDAI's records. Aadhaar eSign uses the same authentication step but goes further: it produces a legally valid digital signature on a specific document. Most signing flows perform eKYC first (to verify the signer) and then eSign (to produce the binding signature).
Start signing with Aadhaar today.
₹20 per signature. Flat. Buy any quantity from your billing dashboard. Credits valid 12 months.