Central Board of Indirect Taxes and Customs(CBIC) has issued a Notification No. 55/2018- Central Tax to extend the last date for filing GST return in Form GSTR-3B for the month of September 2018 from 20th day of October, 2018 to 25th day of October, 2018 with a view to give more time for availment of ITC for the period July, 2017 to March, 2018.