UID is being implemented in India providing valuable information of citizens. Various facilities are to be provided on the basis of that information to the masses. It will also reveal how it can be used for genuine identity of a person and thus improving security for various e-governance applications. In this paper idea of UID and authentication request types such as biometric have been studied. The use of Hadoop architecture is suggested which can be used for studying the authentication request types such as biometric technique, as it is one of the strongest methods of authentication.