I am an auditorium service provider opted quarterly return filing. In the last financial in Quarter 1 and 2 there were refund of rent and GST due to cancelation of booking. Though the refund bill details have been filed in respective returns. refund rent amount is not deducted while calculating the taxable amount. Hence tax has been paid including the refund amount. The question is whether i can deduct the refund of rent from current years rent collection and compute tax accordingly. Whetehwr I have to file again the same refund bill deatils.