Did you transfer the amount of Rs. 10 lakh from your personal account or partnership firm account, wherein borrower(deceased) was a partner ?
If it has been transferred from your personal accout you will have to issue legal notice to LRs of deceased, within 3 years of such transfer.
If the amount was transferred from the accounts of firm, it is accounted and may be adjusted.
Incomplete information can not lead to form proper opinion and obliged on the basis of presumption and assumptions.
It is advisable to consult a local prudent lawyer for better appreciate facts and circumstances, analyse and give professional guidance.