An FIR has been registered after the collapse of a three-storey commercial building near Saket Metro station in south Delhi, which claimed the lives of four people, while many others were rescued and admitted to hospital, an official said on Sunday. Police sources said that some of the injured and deceased were preparing for the Foreign Medical Graduate (FMG) Examination. The building on Western Marg in the Saidulajab area collapsed on Saturday evening. The structure housed a coaching institute, cafes and offices, while construction work was reportedly underway on the upper floor at the time of the incident. “A total of four people have died in the incident. Rescue operation is underway. A case of culpable homicide has been registered, and teams are investigating the entire matter,” Deputy Commissioner of Police (South) Anant Mittal