Opinion on auction property purchase

As a bank offered me to purchase auction property (piramal bank now previously it was dhfl) but Bank doesn't have the original documents as Bank saying that a bank employee as a manager made a loan with his own Bank by depositing the original documents as a equitable mortgage 2015 after sometimes about 2 years he has changed the original documents with the colour xerox and absconded and cheated the bank Till now he is absconded. In November 2018 it has classified as a npa Ine January 2019 issued demand notice In September 2019 symbolic position notice issued Ine October 2019 position notice published in newspapers In January 2023 they have taken Court order from senior civil judge Gadag district for physical position and with the help of police they are taken a physical position and now the property is under Bank authority with locked locks are with bank In august 2023 bank published a public notice regarding loss of original documents and requested to if anybody having the original documents to return the bank Now bank is ready to give certified copy from sub register instead of original documents Owner is absconded since 5 years Bank taken possesion since 10 months Two times they have called for auction but no one as applied for that because of lack of original documents Now bank is offering me at discount price Weather I can purchase this property whether legally I will become absolute owner or not If anyone come with original documents in future what will happen I have doubt Whether the owner deposited the original documents with any other banks as equitable mortgage what happens in future Whether I can purchase or not