eHastakshar (Aadhaar eSign)

eHastakshar — sign any business document in seconds, with full legal validity.

Sign offer letters, vendor contracts, NDAs, statutory forms, settlements, and agreements with Aadhaar. No paper, courier, scanner, or USB token required.

Aadhaar-based signatures for business documents.
NSDL-licensed Certifying Authority partner infrastructure
Tamper proof digital certificate with full audit trail
Portal, mobile, and API integration options

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🔐 ISO 27001

🛡️ ISO 27701

✓ GDPR Compliant

⚖️ DPDP Act

OTPAadhaar

OTPseconds

IT Act3A valid

NSDLeSign partner

AES-256Encryption

5+Fortune-listed clients

25+Inc.-listed clients

DPDPAct aligned

How it works

Sign business documents in seconds with Aadhaar OTP.

Upload the document

Upload any PDF and mark where each signer should sign.

Send to signers

Signers receive a secure link by email or SMS and open it on any device.

Aadhaar OTP authentication

Signer enters Aadhaar number, receives OTP on Aadhaar-linked mobile, and confirms identity.

Digital certificate affixed

A tamper-evident digital certificate is attached via NSDL-licensed CA partner infrastructure.

Audit trail captured

IP address, timestamp, OTP verification, consent, and signature events are logged.

Archive signed copy

The signed document is stored in the Kleeto repository for retrieval and compliance.

Signature flow

From upload to legally valid signed document.

A complete Aadhaar eSign experience that lets teams execute documents faster and store signed evidence safely for the long term.

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Upload PDF

Add offer letter, vendor contract, NDA, statutory form, or agreement.

📂Any PDF document

Use HR, legal, vendor, or finance files.

👥Multi-signer ready

Prepare one or many signers on the same file.

📍Field preparation

Mark exactly where signatures must appear.

🔄Version control

Keep the right document copy before sending.

Place signature fields

Mark signer positions and signing order.

✍️Sign positions

Add signature or initial placeholders.

🔢Signing sequence

Define who signs first and next.

🧷Optional witnesses

Support additional signature blocks when required.

🎯Visual clarity

Ensure every signer knows their action.

Send secure link

Share by email or SMS with no app required.

📧Email invite

Send signature requests instantly.

📱SMS link

Reach signers directly on mobile.

🚫No app needed

Signing works without installation.

⏰Expiry controls

Set secure signing windows.

Verify Aadhaar OTP

Signer completes identity verification with Aadhaar-linked OTP.

🆔Identity check

Validate the signer using Aadhaar.

🔒Consent trail

Record signer consent with every attempt.

👆Biometric option

Support biometric authentication where available.

📜OTP evidence

Maintain proof of the verification event.

Affix certificate

Digital signature certificate is applied to the document.

🏛️NSDL-backed CA

Use a licensed certifying authority flow.

🛡️Tamper-evident

Protect the signed file cryptographically.

⚖️IT Act validity

Support Section 3A compliant signatures.

📄Signed copy

Generate the final executed document instantly.

Store audit trail

Signed copy and audit evidence are archived in Kleeto.

🕘IP and timestamp

Capture who signed and when.

⬇️Download copy

Provide an immediate signed PDF.

📚Repository archive

Store signed records centrally.

🔌API handoff

Integrate signed output with your systems.

Comparison

eHastakshar vs wet signature vs scanned signature.

Aspect	Wet signature	Scanned signature	eHastakshar
Customization	Limited	Completely configurable and customizable.
Legal validity	Yes	Disputed	Yes — IT Act 3A
Tamper detection	None	None	Cryptographic
Identity verification	Manual	None	Aadhaar OTP / biometric
Audit trail	None	None	Full timestamped log
Time to sign	Days	Hours	Seconds

Built for Indian compliance

Legally valid Aadhaar-based electronic signatures.

eHastakshar is Aadhaar-based eSignature recognized under Section 3A of the IT Act 2000. Kleeto runs signing workflows through NSDL-licensed Certifying Authority partner infrastructure with consent capture, purpose limitation, and data minimization.

HR documents

Offer letters, employment contracts, NDAs, exit letters, FnF settlements, statutory nominations.

Vendor procurement

Vendor agreements, MSAs, SOWs, purchase orders, and supplier declarations.

Finance compliance

Loan documentation, KYC declarations, customer agreements, and RBI-mandated forms.

Legal contracts

Service agreements, settlement agreements, indemnity bonds, and partnership documents.

Industries

For high-volume legally valid signing.

NBFCs & BFSIInsuranceHR TeamsHospitals & HealthcareManufacturingRetailLegal TeamsVendor OnboardingCustomer OnboardingDigital Lending

FAQ

Frequently asked questions

Clear answers for HR, finance, legal, compliance, and operations teams.

Yes. eHastakshar is recognized under Section 3A of the IT Act 2000 and the Second Schedule via Gazette Notification GSR 61(E).

The signer needs an Aadhaar number and an Aadhaar-linked mobile number for OTP authentication. No app installation, DSC token, or physical visit is required.

DSCs require a USB token and periodic renewal. eHastakshar uses Aadhaar authentication for one-time signatures without hardware, making it easier for high-volume signing.

Yes. Kleeto offers eHastakshar via web portal, mobile, and API integration for HRMS, CRM, lending, onboarding, and document workflows.

See Kleeto live

See eHastakshar in action.

We will sign it live with Aadhaar eSign.

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