A site supervisor has been booked in connection with the tragic drowning of a worker at a Mumbai Metro construction site. The incident occurred when the worker accidentally fell into a water-filled pit at the site and could not be rescued in time. Following a preliminary probe, police registered a case against the supervisor for alleged negligence in ensuring safety protocols at the site. Authorities have also initiated an inquiry to assess whether proper safety measures were in place and adhered to during the ongoing construction activity.