Bank Not Giving Physical Possession

I purchased a house property through E-Auction on 14.12.2017. I paid the full amount of Rs. 59.75 lakhs to the Bank. Bank took the physical possession as the previous borrower gave over the key to the bank 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. on 14.05.2019 I made a complaint to CPGRAMS Portal and to made a reply to the portal the Chief manager of the Bank gave a name sake complaint on 28.05.2019 which was nearly 2 months of trespass.I have sent a legal notice on 14.09.2019 to the branch insisting for physical possession. But the branch in its reply through their legal notice dated 21.09.2019 did not specify any information about the handing over the physical possession and bluntly informed me stating that karuppana raja and his wife break open the house which was already sealed by the branch on 01.03.2019 and took over the possession of the house property by a criminal trespass coupled with illegal infringing the legal rights of State Bank Of India. On receipt of their legal notice dated 21.09.2019, I went to the branch on 01.10.2019 the Chief Manager told me that they have lodged a complaint to the police station about the break open and the illegal occupancy of the third parties. As a proof, the Chief 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. . From the words of the CSR copy it is clearly evident that the branch had given a namkevas complaint by stating that the house was occupied by some unidentified anti-social elements. Instead of taking effective steps by making a proper complaint and register an FIR against the said karuppana raja and his wife for the break open of the house sealed by the bank on 01.03.2019 particularly. I understand that FIR was not filed against the illegal occupants so far who break open the Bank seal and trespass the house for their illegal occupation. Normally we can understand that it is a grave offence committed by karuppana raja and his wife, but the bank had taken it lightly, only because of the collusion existed between the bank and the illegal occupants karuppana raja and his wife. The bank not even whispered the name of the accused in the complaint. 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 advice