obtain succession certifcate from court as your father died intestate ie without a will .
1)issue legal notice to NBFC company to return the amount deposited by your deceased father
2) if company fails to do so you can deposit the 2 cheques received from the finance company
3) you can fill in the cheque amount only with the consent of finance company .
4) if cheque bounces file complaint under section 138 NI for dishonour of cheque
5) you can also file suit to recovery the money paid with interest