In view of the natural calamity caused by heavy rains, the due date of GSTR-3B for the July-2025 tax period has been extended from 20th August, 2025 to 27th August, 2025 for Mumbai (City), Mumbai (sub-urban), Thane, Raigad and Palghar districts of Maharashtra.
(Link: CGST Notification 12/2025 Dated 20/08/2025, GSTN Advisory Dated 21/08/2025)