If you have access to a computer, the retail banking portal offers the most control. Visit onlinesbi.sbi and log in. Go to the tab. Select ATM Card Services .
was the card blocked? (Wrong PIN, reported lost, or temporary lock?) Do you have active net banking or the YONO app set up? Is your current phone number registered with the bank? how to unblock sbi atm card
There are two scenarios to consider: