A court on Monday allowed the Delhi Police's plea seeking three days of custodial interrogation of the owner and on-duty doctor of the private hospital where a blaze killed seven newborns and injured five.

Chief Metropolitan Magistrate Vidhi Gupta Anand sent Dr Naveen Khichi, the hospital's owner and Dr Aaksh -- who was on duty at the time of the fire late on Saturday -- to a three-day police custody.