Is bank passbook a valid address proof

Yes, a bank passbook is a valid address proof for various official purposes in India. For it to be accepted, it must meet certain criteria:

• It must be an updated photo passbook of a running bank account.
• The document should be issued by a Scheduled Public Sector Bank, Scheduled Private Sector Indian Bank, or Regional Rural Bank.
• It must clearly display your current residential address and name, officially printed and stamped by the bank.
• Usually, it should not be more than three months old for current verification needs.