Section 69 of IPC 1860: Termination of imprisonment on payment of proportional part of fine
Termination of imprisonment on payment of proportional part of fine-Indian Penal Code
If, before the expiration of the term of imprisonment fixed in default of payment, such a proportion of the fine be paid or levied that the term of imprisonment suffered in default of payment is not less than proportional to the part of the fine still unpaid, the imprisonment shall terminate.