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eSign an Authorization Letter Online with Aadhaar

Authorize someone to act on your behalf — collect documents, sign forms, or handle transactions. Legally valid under IT Act 2000. ₹15 per signature.

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By Priya Sharma, Legal Content Lead·Last updated April 2026

What is an Authorization Letter?

An authorization letter is a formal document in which one person (the 'authorizer' or principal) gives another person (the 'authorized person' or agent) permission to act on their behalf for a specific purpose. Common use cases include authorizing someone to collect documents from a government office, pick up a parcel, operate a bank account temporarily, handle property matters, or represent you in meetings you can't attend.

Authorization letters are distinct from Power of Attorney documents — they're typically used for single, specific, short-term tasks rather than ongoing legal representation. For example, asking a friend to collect your passport from Passport Seva Kendra, or letting a colleague receive an important courier, or giving your sister permission to access your bank locker once.

In India, authorization letters don't typically require stamp paper or notarization for most everyday uses. However, the receiving party (bank, government office, courier) may ask for identity proof of both parties. An Aadhaar eSigned authorization letter provides that identity proof automatically via the cryptographic signature.

Who needs an authorization letter?

NRIs managing Indian affairs

Authorize a family member in India to collect documents, visit banks, or handle paperwork on your behalf without traveling.

Working professionals

Authorize a colleague to attend a meeting, pick up a delivery, or handle a task when you can't be physically present.

Parents of students

Authorize a student's guardian to pick up results, certificates, or handle admission formalities at their institution.

Individuals managing elderly parents' affairs

Authorize yourself to handle bank visits, medical appointments, and document collection for elderly parents who can't travel.

Legal framework

Legally valid under Indian law

Authorization letters for specific, limited-scope tasks are eligible for Aadhaar eSign under Section 3A of the IT Act, 2000. Since they're not the same as a Power of Attorney for substantial legal matters, they don't typically need stamp paper or registration. The Aadhaar eSign provides both the signature and identity verification in one step, which is usually sufficient for the receiving authority to verify the authorization. For bank-related authorization (especially for transactions above ₹50,000), banks may ask for a physical signed letter with photo identification rather than accepting an eSigned version — always check with the specific bank first.

Primary reference: Section 3A, IT Act 2000

Important note

For high-value transactions or ongoing legal representation, use a Power of Attorney instead of an authorization letter. Banks and government offices may have specific authorization forms for their own processes.

Essential clauses

  • Full name, address, and Aadhaar/PAN of the authorizer (principal)
  • Full name, address, and identity proof of the authorized person (agent)
  • Specific task or purpose for which authorization is given
  • Validity period (start date and end date of the authorization)
  • Scope limitations (what the authorized person can and cannot do)
  • Contact details of the authorizer for verification
  • Date and place of signing

Ready to eSign your authorization letter?

Drop your PDF and get it signed with Aadhaar in 2 minutes. Just the authorizer = ₹15.

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Common mistakes

Making the authorization too broad (use a Power of Attorney instead for anything substantial)
Forgetting to specify the validity period, leading to indefinite and unenforceable authorization
Not including identity proof details of the authorized person, which the receiving party will ask for
Missing the specific task description, making the authorization challengeable by the receiving party
Not providing a contact number for the authorizer so the receiving party can verify by phone

How to eSign online

  1. 1

    Draft your authorization letter

    Write a simple letter stating who you authorize, for what purpose, and for how long. Export to PDF.

  2. 2

    Upload the PDF to SignSetu

    Drop the authorization letter into SignSetu. The authorized person's details should already be in the letter.

  3. 3

    eSign with your Aadhaar OTP

    As the authorizer, you sign with your Aadhaar OTP. The eSigned PDF serves as the authorization. Share it with the authorized person who'll present it to the receiving party.

FAQs

Do I need to notarize an authorization letter?
Usually no for everyday tasks (document collection, parcel pickup, office representation). Notarization may be required for bank-related authorizations above a certain value or for legal proceedings. Check with the receiving authority first.
How is an authorization letter different from a Power of Attorney?
An authorization letter is for specific, limited, short-term tasks. A Power of Attorney is broader, longer-term, and can cover significant legal matters. PoAs usually require stamp paper and sometimes registration; authorization letters don't.
Can I use this to authorize someone to withdraw money from my bank account?
Most banks require their own specific authorization forms for account operations, not generic authorization letters. For lockers, specific withdrawals, or account operations, ask your bank for their authorization form.
Does the authorized person need to eSign the letter too?
Usually no. The authorizer (principal) signs the letter to grant permission. The authorized person just presents the letter when performing the task. Some forms may require their signature too — check the specific requirement.
How long is an authorization letter valid?
As long as you specify in the letter. For one-time tasks, validity is usually a few days to a few weeks. For ongoing tasks, specify a clear end date — don't leave it open-ended.
Can NRIs use this to authorize someone in India?
Yes, as long as the NRI has an active Aadhaar and can receive OTP on the linked Indian mobile. This is one of the most common use cases — NRIs authorizing relatives to handle Indian document matters.
Is an eSigned authorization letter accepted by government offices?
Depends on the office. Many government offices now accept Aadhaar eSigned documents. A few traditional offices still want physical signed copies. If you're unsure, print the eSigned PDF and carry it — most offices accept printed eSigned documents.

On this page

What is an Authorization Letter?Who needs an authorization letter?Legal frameworkEssential clausesCommon mistakesHow to eSign onlineFAQs
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