Three workers died, after being caught under the debris, when a concrete ceiling collapsed at Sekhmet Club in Alwarpet on March 28 evening.
Police sources said the staff were busy with preparations for a grand party.
At 7 p.m., when the police control room received a message from the staff, senior police officials rushed rescue teams and Fire and Rescue Services personnel to the spot.
They managed to retrieve three persons caught under the debris and sent them to Government Royapettah Hospital where they were declared brought dead.
