After paying all home loan payment bank is not closing my home loan account and not returning my doc

I have taken home loan from union Bank of India in 2015 Then after 5 years in 2020 I got notice from bank saying builder have submitted forged documents so you have to pay all amount otherwise account will become NPA Amount is big so how could I pay in one go , so they marked my account as NPA after 2-3 months even paying all EMI's on time ,after this also i kept my emis ontime, i have approached Bank manger and regional officeamy timea for any resolution but they were kept saying pay full amount then issue will get sorted out So in Sept 2022 I paid all home loan amount with interests but still they haven't closed my account yet , amount is nill but still this account is reflecting in my cibil and my cibil score is came down because of this home loan I'm not getting any help from any financial institution because of bad cibil and job offers also getting rejected I have raised complaint in banking obudsmen as well and got decision to release my documents within a month's time ,but still bank is not interested to release my property documents Request your advise in this case