Dikshit said the licence of the owner of the private bus, on which the gory incident took place, has been cancelled and a fast track court would hear the case.
"There will be a fast track trial in the gangrape case," she told media persons here.
Police have so far arrested four people, including bus driver Ram Singh, for their alleged involvement in the crime.
The incident occurred Sunday night when the 23-year-old woman with her male friend boarded a private bus after watching a movie to go from Munirka to Dwarka.
The woman, who was gangraped by at least seven men and thrown off the bus with her friend, is critical and on ventilator support at a hospital in New Delhi.