Amid soaring temperatures, Mumbaikars may lose the luxury of 24x7 power supply. This is in the wake of rapidly increasing power demand and transmission constraints in the evacuation of power from outside. Mumbai's peak demand was recorded at 3,820 mw on Friday, 3,851 mw on Thursday, 3,807 mw on Wednesday, 3,616 mw on Tuesday and 3,633 mw on Monday.