The GST3B for the month of AUG-18 has been filed erroneously. The tax on outward supplies was filed as 9800 instead of 19800. After realizing the mistake, The required correction is being made in the return of FEB-19, for calculating the interest, due date of AUG-18 has to be taken into consideration. The due date of AUG-18 is showing as 31.03.19. The executive at CBEC helpdesk informed to calculate due interest from 21.09.2018. Kindly guide as to which date should be taken into consideration for calculating Interest.
