They said three JCB excavating machines have been sent to the spot to remove the debris and rescue operations were on.
“The injured persons were mostly labourers who were working there,” it said.
They have been admitted to the Sushruta Trauma Centre at Hindu Rao Hospital and Ram Manohar Lohia Hospital.
“One of the injured is stated to be critical,” the police officer said.
He said construction work was going on there on the second and third floors