Find the odd one.
1. Elimination of storage of Certificates, Theft of Certificates, Torn Certificates.
Ans: Elimination of storage of Certificates
2. NSDL, CDSL, NBFC
Ans: NBFC
3. Depository, DP, RBI.
Ans: RBI
4. DP, BO, State Government.
Ans: State Government
5. Issuer, BO, Central Government.
Ans: Central Government
6. DRF, RRF, PPF
Ans: PPF