Authorities in Puducherry and Tamil Nadu restrict when people may burst firecrackers for Deepavali, setting tight time windows rather than allowing continuous use through the festival. The limits are described as two-hour totals, with the applicable hours laid out by local regulatory bodies.

In Tamil Nadu, reporting also references guidance from the TNPCB (Tamil Nadu Pollution Control Board), specifying morning and evening periods within the two one-hour slots. Different outlets frame the same basic restriction—Puducherry’s rules for a two-hour period and Tamil Nadu’s two one-hour windows—using similar language about permitted times while emphasizing different administrative details.