For Folio no. Enter your alphanumeric/numeric folio number as mentioned on the certificate. For DP ID Client ID In case of NSDL: 16 digit alpha numeric DP ID Client ID starting with "IN" without any spaces.e.g. In case your DP ID is IN123456 and Client ID is 78901234 then please enter IN12345678901234 In case of CDSL: 16 digit numeric ID without any spaces e.g. 1234567890123456.