Delhi imposes fixed-time winter curbs from Nov 1: dust/BS-VI bans, 50% WFH, doubled parking, and stricter enforcement incentives. Delhi government’s fixed-time measures to curb air pollution during the winter, including a ban on dust-generating demolition and outdoor construction activities and the plying of. To combat the seasonal surge in winter air pollution, the Delhi government will ban the entry of all non-BS-VI compliant vehicles registered outside the national capital starting November 1..