Chidambaram, External Affairs Minister S.M. Krishna, Law and Justice Minister M. Veerappa Moily, Human Resource Development Minister Kapil Sibal, Rural Development & Panchayati Raj Minister C.P. Joshi, Labour and Employment Minister Mallikarjun Kharge, Communications and Information Technology Minister A. Raja, Planning Commission Deputy Chairman Montek Singh Ahluwalia, and UIDAI chairman Nandan Nilekani.

The main purpose of this ambitious project would avert the need for multiple proofs of identity for citizens while availing any government service, or for private needs like opening bank accounts or seeking telephone connections.

It is also expected to enhance national security by helping to identify illegal aliens.

Nilekani was personally selected by Prime Minister Manmohan Singh to head the project with the rank of a cabinet minister.