GST: 30-04-2018 – Due date for filing GSTR -1 for March 2018 Quarter- Applicable for taxpayers with Annual Aggregate turnover Up to 1.50/- Crore. GST: Time period for filing GSTR-2 & GSTR-3 for July 2017 – March 2018 will be subsequently notified. IT: 30-04-2018– Due date for deposit of tax deducted/collected at source for the month of March 2018 IT: 30-04-2018 – Due date for furnishing of Form 24G by an office of the Government where TDS for the month of March, 2018 has been paid without the production of a challan. IT: 30-04-2018 – Due date for furnishing of challan-cum-statement in respect of tax deducted under Section 194-IA in m/o March 18. IT: 30-04-2018 – Due date for furnishing of challan-cum-statement in respect of tax deducted under Section 194-IB in m/o March 18. IT: 30 April 2018 – Due date for e-filing of a declaration in Form No. 61 containing particulars of Form No. 60 received during the period October 1, 2017 to March 31, 2018. IT: 30 April 2018 – Due date for uploading declarations received from recipients in Form 15G/15H during quarter ending March 2018. Companies Act: 01-05-2018 – Condonation of Delay Scheme 2018 [CODS-2018] allows Defaulting Companies to file its overdue documents which were due for filing.