The Central Board of Indirect Taxes and Customs (CBIC) notified that the return in Form GSTR-3B of the Central Goods and Services Tax Rules, 2017 for each of the months from October 2020 to March 2021, which shall be furnished electronically through the common portal, on or before the  20th day of the month succeeding such month.However, the Board notified 22nd day of the succeeding month to file the return in Form GSTR-3B if the taxpayers having an aggregate turnover of up to Rs. 5 crore in the previous financial year and is part of category I states. Further, the Board notified 24th day of the succeeding month to file the return in Form GSTR-3B if the taxpayers having an aggregate turnover of up to Rs. 5 crore in the previous financial year, whose principal place of business is in the category II States.