New Delhi, Sept. 1 -- A 29-year-old van driver of a private school has been arrested for allegedly sexually assaulting a three-year-old girl several times on the premises of the school in Delhi's Bawana area, police said on Monday. The victim is a nursery class student and the incident came to light last week after her mother, noticing her "unusual behaviour" and "bruises" on her body, questioned her. She then told her mother that the accused allegedly lured her with chocolates and sexually assaulted her near the school washroom. This allegedly happened at least twice, police said. "However, the girl didn't know the man's name. The parents went to the school on August 24 when the administration showed them photos of the staff and CCTV foota...