Because of the lax record-keeping and no mandatory registrations of births, marraiges or deaths, it's virtually impossible to verify the identity of anyone, the same reason why terrorists can go about the country without detection, especially with so many crooked corrupt netas and babus so willing to 'provide' the necessary papers for a song. Anyways, with DNA technology, it's easy to verify whether he's even related to Netaji, whose offsprings can provide DNA samples for testing.
