Canara Bank — Car loan regarding

I purchase on celerio car with Maruthi Suzuki help of Syndicate bank. Total loan amt 477000.00 with interest 785000.00 i have paid more than 400000 balance 325000. but last some years i am not able to pay the amount. So that the last Saturday (03.09.2021) i have surrender my car at Syndicate Bank (Canara Bank) at the Arubakkam branch. But still, I did not get any confirmation i have surrendered my car. They don't give any documents I have surrendered my car. But i want settlement ple help I will pay some amount and will close this loan and will take my car asap. I am ready to pay my settlement amount and will return my car. But the bank persons not give any details to return my car(own board). But they asked i want to pay the amount. I have surrendered my car. So please close my account. Still i got message from bank and call form some others person.