The Brihanmumbai Municipal Corporation (BMC) has issued stop-work notices to contractors for the Mumbai-Ahmedabad Bullet Train and Metro Line 2B projects at Bandra Kurla Complex (BKC) due to violations of air pollution mitigation norms. Inspections revealed a lack of dust suppression measures, leading to the halt of excavation and other activities. This action follows criticism from the Bombay High Court regarding the BMC's monitoring of air pollution. While NHSRCL claims compliance and 85% excavation completion, the BMC insists on corrective measures before work can resume.