Mumbai bans rockets and aerial firecrackers till November 25 after Thane, as 137 of 142 Diwali fire calls are tied to crackers. Violators could face. After 137 firecracker-linked calls in one day, the BMC has banned rockets and other aerial firecrackers across Mumbai until November 25. With firecrackers linked to 96 per cent of the reported fires, authorities have prohibited rocket crackers on terraces and balconies, with violators facing possible jail time.