Missed Dues on Loan , Notice to Pay in 5 Days

I have missed three payments on my existing loan and has received from MOJ to pay the total remaining loan in 5 days ( Implementation request ) .

I cannot pay the amount in 5 days , i am willing to pay the loan in two installments in two months .

How do i avoid the case against me Or ask extension for me arrange the money and is there any jail term for the above ?
Note : I have completed several loans in the past , due to family situation in india , i was not frequent in my dues .