Answer : 1. "PFRDA"
Explanation :

Pension Fund Regulatory and Development Authority (PFRDA) has made 'Penny Drop' verification mandatory for withdrawal of funds as well as modification of bank account details by subscribers of National Pension System (NPS), Atal Pension Yojana and NPS Lite. . Under the process, the central recordkeeping agencies (CRAs) check the active status of the savings bank account and match the name in the bank account number with the name in the PRAN or as per the documents submitted.