one of the basic criteria was that the names of applicant's family members should either be in the first NRC prepared in 1951 or in the electoral rolls up to March 24, 1971.
Other than that, applicants also had the option to present documents such as refugee registration certificate, birth certificate, LIC policy, land and tenancy records, citizenship certificate, passport, government issued licence or certificate, bank/post office accounts, permanent residential certificate, government employment certificate, educational certificate and court records.