Most debates around the Unique Identification Authority of India and Aadhaar focus on privacy concerns, security of the database and on the legality of making Aadhaar mandatory. But even if these three concerns are sorted out, there are four other concerns that need attention. In all four, you will see the following common themes:

  1. It is very likely that UIDAI knows the existence of the problem.
  2. Entities other than UIDAI are using Aadhaar incorrectly and sometimes dangerously.
  3. UIDAI has framed policies protecting itself from implications of these wrong usages.
  4. UIDAI is unlikely to address these issues, because solving them may reduce the usage and acceptance of Aadhaar.

1. Not an address proof

The first of these four concerns is that UIDAI knows that Aadhaar is not an address proof even though the industry uses it as an address proof, but will choose to remain silent about it.

Various entities allow Aadhaar to be used as both an identity proof as well as an address proof  –  banks, for example, use biometric eKYC to onboard new customers. But the reality is that UIDAI does not validate the address of every applicant. Though applicants are asked to provide an address proof for Aadhaar enrolment, it is optional  –  the enrolment process (and form) is designed to allow anyone to get an Aadhaar without any documents (mainly because Aadhaar is meant even for those who sleep under the flyover).

Aadhaar enrolment form screenshot. If you don’t have (or choose not to give) an address proof, you can choose Introducer or Head of Family based verification and get any address updated in Aadhaar. (Attestation by the introducer is all it takes)

UIDAI is aware of this flaw, which explains why the Aadhaar Bill has multiple mentions of Aadhaar being a proof of identity, but has no mention of it being a proof of address.

Section II.4.3 of the Aadhaar bill says:

Screenshot of the Aadhaar Bill. Note the strategic absence of “proof of address”.

It would be appropriate of UIDAI to clarify to RBI and other authorities that Aadhaar is not a proof of address, but that would mean banks and telcos would no longer be interested in eKYC  –  imagine if banks are asked to collect a second document as address proof despite performing a biometric eKYC. Thus if UIDAI were to “fix” this issue, eKYC (Aadhaar’s core feature) will become useless and Aadhaar’s acceptance will be impacted.

2. Not a proof of citizenship

The second problem with Aadhaar is that it is not a proof of citizenship, but can be used to either apply for a passport or obtain other identity documents that can then be used to apply for a passport.

The Aadhaar Bill Section III.9 states the following:

Screenshot from Aadhaar Bill Section III.9

But this hasn’t stopped the passport office from listing Aadhaar as an acceptable document  –t hey go even further to state that “Furnishing of Aadhaar card will expedite processing of passport applications”.

The passport office, on its website, further states:

  • Furnishing of Aadhaar card will expedite processing of passport applications.
  • Aadhaar letter/card or the e-Aadhaar (an electronically generated letter from the website of UIDAI), as the case may be, will be accepted as Proof of Address (POA) and Proof of Photo-Identity (POI) for availing passport related services. Acceptance of Aadhaar as PoA and PoI would be subject to successful validation with Aadhaar database
From the Passport Seva website

Even if the passport office were to stop accepting Aadhaar as a valid document, a non-Indian can apply for a bank account or water connection or electricity connection using an Aadhaar number, and then apply for a passport using the bank statement or utility bill as an acceptable document.

The only way for UIDAI to address this is to declare that Aadhaar cannot be used for passport applications, public utilities, bank accounts and any other services which may then be used to apply for a passport. But of course, this would limit the usage and acceptance of Aadhaar, and therefore its relevance.

3. Aadhaar card alone is not an ID

The third problem is that possession of a physical Aadhaar card should not be considered as identification in airports, trains and other places.

UIDAI does not include holograms or physical signatures or any other security information in the Aadhaar cards that are sent to applicants  – it is just a colour printout of your Aadhaar information. You can also download and print your Aadhaar (even in black and white) as your Aadhaar card  – print multiple ones and each one will be considered “original”.

Clarification from UIDAI that black and white printouts of Aadhaar info are as valid as the Aadhaar card sent to you or the plastic cards that someone laminated for you

This is because UIDAI does not consider possession of an Aadhaar card as authentication that it belongs to you. UIDAI instead asks entities to authenticate the Aadhaar number based on OTP or biometrics by connecting to the UIDAI system, prior to usage.

See last sentence in Aadhaar Bill Clause 4: Aadhaar can be used as proof of identity “subject to authentication”

But in reality, the ticket checker in trains, the security guard at the airport entrance and many other places consider a physical Aadhaar card as a valid identity document.

If UIDAI were to publicly clarify that the physical Aadhaar card is irrelevant and electronic authentication is required prior to being used, it would mean that the airport security guard or the train ticket inspector carries a biometric device with them for validation. This would slow down their entire process and they would instead insist that you provide an ID proof other than Aadhaar. So if UIDAI tried to fix this problem, it would mean reduced acceptance of Aadhaar in public life, again reducing its relevance.

4. Aadhaar numbers can (but shouldn’t be) made public

The fourth problem is that Aadhaar numbers are probably meant to be secret to avoid misuse, but UIDAI does not stop organisations from putting Aadhaar information out in public.

Only a professional counterfeit artist can recreate passports or driving licenses  – this is because there are security features like holograms in an original document. But this does not apply to Aadhaar  –  there is no concept of an “original” Aadhaar card (See Issue #3 above). A printout of Aadhaar information is being treated by various entities as a valid document, so it is easy for a fraudster (even an amateur) to print out your Aadhaar card if he knows your basic information like Aadhaar number and name), and start submitting in different places where the government asks us to.

UIDAI is aware of this issue, and hence Section 29 of the Aadhaar Bill states that entities which use your Aadhaar number should ensure the following:

Aadhaar numbers shall not be posted publicly by organisations collecting them

This basically puts the onus on thousands of different organisations to ensure that they do not make your Aadhaar number public. Do a Google search for “Aadhaar number name filetype:xls” and prepare to be stunned at what is out there. Among those multiple excel sheets in the results, you will even find a Ministry website which has uploaded many excel sheets of thousands of people’s information including name, date of birth, address, and Aadhaar number.

Websites have uploaded excel sheets of people’s information including Aadhaar numbers
One such excel sheet has all this information of 1360 people out there in public

Printing their Aadhaar cards will probably take a few minutes of effort for a fraudster with a computer and a black and white printer.

UIDAI can stop this by identifying such entities and stopping them from putting out Aadhaar numbers in public, but it is a mammoth monitoring effort. The other solution for UIDAI is same as the solution for Issue #3, which will again reduce Aadhaar’s relevance.


As is now evident, UIDAI is faced with two choices in each of these issues. They can either fix the problem, running the risk of Aadhaar irrelevance in public life, or they can choose to stay silent, running the risk that something may go wrong at a large scale in the future.

This article first appeared on St_Hill’s blog.