No volume but LTQ is not zero

There are some options like IBULHSGFIN MAR 200 PE which have LTQ as non zero but the volume is 0. How come there is last traded qty without any volume?

as per my knowledge, those non traded contracts show settle price. ( or show last traded price which was few day’s back).settle price is decided by exchange by calculating strike, average vol etc.

It was showing LTQ last traded qty not the price

i think it shows by default qty as per lot size.
when no trade is executed in the contract.