SECTION 70 IPC - Indian Penal Code - Fine leviable within six years, or during imprisonment. Death not to discharge property from liability

The fine, or any part thereof which remains unpaid, may be levied at any time within six years after the passing of the sentence, and if, under the sentence, the offender be liable to imprisonment for a longer period than six years, then at any time previous to the expiration of that period;
and the death of the offender does not discharge from the liability any property which would, after his death, be legally liable for his debts.

IPC 70 in Simple Words

In simple words, if a fine remains unpaid, it can be collected within six years from the date of the sentence or before the expiration of the imprisonment period if it is longer than six years; and even if the offender dies, their property may still be used to pay off the outstanding fine.