Is Aadhaar mandatory for investment in small savings schemes such as Senior Citizen Savings Scheme, PPF, NSC, Sukanya Samriddhi Yojana?

Small Savings Schemes like PPF, SCSS, SSY have strict documentation rules including Aadhaar & PAN submission. Non-compliance can render accounts non-operational. SEBI RIA stresses the importance of timely updates for smooth operations.