The Bombay high court on Monday dismissed some leading developers' petitions challenging the stop-work notice issued to them by the BMC for constructing flats on private forest land in blatant violation of the Forest Conservation Act. The immediate impact of the court order will be felt by an estimated 1 lakh flat owners as well as people who have paid for approximately 75,000 flats under construction on private forest land in the Bhandup-Mulund-Thane and Borivli-Kandivli belts. The stringent Forest Conservation Act bans nonforest activity on private forest land.