"The Commissioner of Police was given a pat on his back by no less than a person holding the post of Home Secretary. I was shocked to see that," Verma told a press conference here after submitting report on measures to improve laws dealing with sexual offences.
He said the least he would have done was to seek an apology for the failure of the duty to protect citizens and "instead of that (what did we see)".
Singh had praised Delhi Police during a press interaction days after the December 16 incident when the force arrested six men allegedly involved in the crime.
A 23-year-old girl was gangraped in a moving bus in south Delhi allegedly by six men. The girl died on December 29 in a Singapore hospital.