The victim, T Srinivas Rao, a shop worker, was taking a nap in the room yesterday when the district's revenue authorities went to Devender Nagar under Cyberabad police commissionarate limits to dismantle some illegal structures with earth-movers, Jawaharnagar Inspector Venkatagiri said.
"However, the officials did not notice the victim sleeping in the room. He suffered injuries as the roof collapsed. He was immediately admitted to a hospital and is stated to be out of danger," he said.
Srinivas, a resident of Malkajgiri, used to take a nap in the room after lunch as it was lying vacant, the police officer said.
Based on a complaint, police registered a case against the revenue officials for allegedly not giving any notice prior to demolition and negligence, he added.