Indian Overseas Bank — cibil score is not updated upon closing of my education loan

I have closed my education loan last year, but post closure my cbil score is not updated. So its affecting my credit score and other loan processing as well.

Its very unfortunate that, credit score is not reflected after closing my loan account 11 months back. Hope its banks responsibility to update cibil frequently.

Five months back i have visited the branch but not seeing any updates/action from them.

Moreover, i had only one education loan, but in cibil its updated as 2 separate loans.

Bank name : indian overseas bank
State : tamil nadu
District : coimbotore
Branch : palladam
Branch code : 1883
Ifsc code : ioba0001883

Please help to resolve this issue at the earliest.