Bank is not giving the Physical possession.

4 years ago

I purchased a house property through E-Auction on 14.12.2017 for lakhs. Bank took the physical on 01.03.2019 the house was sealed by the bank. within 4 days somebody occupied the house by illegal trespass. Bank did not take any action even after we informed about the trespass. Bank gave complaint to police.
I have sent a legal notice on 14.09.2019. in reply notice bank informed me stating that karuppana raja and his wife break open the house. I went to bank and manager showed me a CSR copy issued by the police in which it had been stated that the house has been illegally occupied by some unidentified anti-social elements.
But in the reply notice sent by the bank to my legal notice, the bank had stated that the house was illegally squatted by karuppana raja and his wife by break open the house which is controversial to their complaint given to police as per the CSR copy, in which it is stated that the house was break open and occupied by some unidentified antisocial elements. . I understand that FIR was not filed against the illegal occupants so far.
By my own resources I came to know that with the help of the bank manager only karuppana raja and his wife occupied the house. Bank is not ready to give my money Rs. 59.75 lakhs nor the house. Please advise the legal remedy.