it is a type of identity card given by the government of India to identify him/her as citizen of india
That is because 1 is the identity element of numbers with respect to multiplication.
One is the multiplicative identity or the identity of/for multiplication.
"What" is the interrogative question that asks for a thing with given identity or aspects, e.g. "What is the result?" "What is the color of the house?" "What" may also ask for the verb identity to a given activity, e.g. "What happened to the car?" "What was the man doing?" Other than applied to a title or name ("What name was drawn?"), the corresponding interrogative for persons (or anthropomorphisms) is "who". "What" normally applies only to non-human living things and inanimate objects.
It is the additive identity.
Identity Unknown was created in 1945.
Dr. Identity was created in 2001.
A Case of Identity was created in 1891.
The Obama Identity was created in 2010.
Marks of Identity was created in 1966.
Cards of Identity was created in 1955.
Defending Identity was created in 2008.
Identity on Fire was created in 2010-10.
The Obvious Identity was created in 1980-06.
Identity thieft
Identity - song - was created on 2010-07-07.
Identity Pieces was created on 1998-09-14.