Central Board of Indirect Taxes & Customs (CBIC) had issued Notification No. 44/2018- Central Tax dated 10th September, 2018 to extend the due date for furnishing the details of outward supplies in FORM GSTR-1, by such class of registered persons having aggregate turnover of more than 1.5 crore rupees in the preceding financial year or the current financial year, for the months from October, 2018 to March, 2019 till the eleventh day of the succeeding month.