The list of documents required to open a savings account are: Identity Proof – Passport/Aadhaar Card/Voter ID/Driving License/PAN Card and Recent Passport Size Photographs. Residence Proof – Aadhaar Card/Driving License/Voter ID/Passport/Utility Bills.
2) for change of address in bank account
Documents for address and identity proof include passport, permanent account number (PAN) card, voter's identity card, valid permanent driving licence, and letter or card issued by Unique Identification Authority of India containing details of name, photograph, address, and Aadhaar number
2) you need any of ids mentioned herein above for operating your bank account