TVS — regarding noc certificate

This is regarding a two wheeler purchase from one of the tvs retail showroom (Brilliant tvs, mandaveli, chennai).

I purchased a jupiter-zx vehicle from the above mentioned showroom and when i got the rc book, it was mentioned as hypothecation to hdfc bank.
Initially i was interested on buying through loan and later i cancelled the plan due to various issues.

In order to cancel the hypothecation, rto office required noc from the bank.
But the sales agency persons are not interested to get it from the bank.
It has been 7 months over since i purchased the vehicle from the showroom.
But there is no sign of relief from me to cancel the hypothecation.

By registering my complaint i hope that some solution would be attained.