Possession notice by finance company

My father had taken home loan(one lakh fifty thousand) from mahindra finance in 2012,which i wasn't aware about.in 2018 they sent notice to repay the amount of (five lakh three thousand)when i called them they asked me settlement in (3lakh),i accepted the settlement amount.and payed(2lakh)in installments.but i was unable to pay remaining (1lakh)of settlement amount because of financial issues.for repayment of settlement amount i took loan from another bank,and becouse of covid i was unable to pay remaining amount to mahindra finance. After that when they asked me about remaining payment i told them about my financial issues.i again requested them to close my loan in(50thousand,which was manageable for me to borrow from someone) but they refused. I have received possession notice from mahindra finance on 21sep 2022.which mentions: "possession notice" Rule 8-(1).Where they asking me to pay(5lakh 3thousand) or if not they will take possession of my house.i again requesting them to close this case in(50 thousand,)but they are saying to settlement in(1laakh 50 thousand)which i can't pay. Pls guide me.and ignore if there is any mistake in writing.