Question: Can the bank ask for more than one proof of address from a migrant worker with a stable low-risk profile?
Answer: RBI guidance aims to avoid undue hardship and allows simplified proof arrangements in appropriate cases.

Supporting evidence:
title: rbi.org.in/PressReleases.aspx
quote: Since migrant workers, transferred employees, etc., often face difficulties while submitting a proof of current address for opening a bank account, such customers can submit only one proof of address (either current or permanent) while opening a bank account or while undergoing periodic updation. If the current address is different from the address mentioned on the proof of address submitted by the customer, a simple declaration by her/him about her/his current address would be sufficient
context: lid documents (OVDs) for KYC purpose include: Passport, driving licence, voters’ ID card, PAN card, Aadhaar letter issued by UIDAI and Job Card issued by NREGA signed by a State Government official. To further ease the process, the information containing personal details like name, address, age, gender, etc., and photographs made available from UIDAI as a result of e-KYC process can also be treated as an ‘Officially Valid Document’.
2. No separate proof of address is required for current address Since migrant workers, transferred employees, etc., often face difficulties while submitting a proof of current address for opening a bank account, such customers can submit only one proof of address (either current or permanent) while opening a bank account or while undergoing periodic updation. If the current address is different from the address mentioned on the proof of address submitted by the customer, a simple declaration by her/him about her/his current address would be sufficient.
3. No separate KYC documentation is required while transferring accounts from one branch to another of the same bank Once KYC is done by one branch of the bank, it is valid for transfer of the account to any other branch of the same bank. The customer would be allowed to transfer her/his account from one branch to another branch without restrictions and on the basis of declaration of his/her local address for communication.

4. Small Accounts Those persons who do not have any of the ‘officially valid documents’ can open ‘small accounts’ with banks. A ‘small account’ can be opened on the basis of a self-attested photograph and putting her/his signature or thumb print in the presence of an official of the bank. Such accounts have limitations regarding the aggregate credits (not more than Rupees one lakh in a year), aggregate withdrawals (not more than Rupees ten thousand in a month) and balance in the accounts (not more than Rupees fifty thousand at any point in time). These small accounts would be valid normally for a period of twelve months. Thereafter, such accounts would be allowed to continue for a further period of twelve more months, if the account holder provides a document showing that she/he has applied for any of the officially valid document, within twelve months of opening the small account.
5. Relaxation regarding officially valid documents (OVDs) for low risk customers If a person does not have any of the ‘officially valid documents’ mentioned above, but if is catego