Aadhar Housing Finance Limited - Not passing repo rate benefits to customer

I have home loan(********) with Aadhar housing which has not complied with rbi repo rate till date. they have increased roi since **** without informing customer. initially when i borrowed home loan of **,**,***/- for ** years in ****, roi was **% and currently it is **.**%. i have repaid **,**,***/- till now( ** yrs.) with clear records. as per current record due to continuous increase in roi i’m supposed to pay emi for another **+ years with current principal outstanding of **,**,***/-. there is no consumer protection here. hfc is just looting money in the name of increased roi. i'm sure after ****, there is too many changes done to repo rate, most of the time repo rate was reduced drastically. but this benefit is not passed on to me till now i want to close my home loan account by paying back actual outstanding by considering rbi repo rate since ****. i want hfc to pass on reduced repo rate benefit since **** and calculate actual outstanding principal. Till now housing finance has increased interest frequently and made me to pay only interest till date. My principal amount is not reduced due to this. I request your intervention in calculating actual principal outstanding amount by considering repo rate cuts announced by RBI since ****. i seek your honest intervention to close my homeloan acc.