A 13-year-old girl was mowed down by a rashly driven bus while her 9-year-old sister sustained grievous injuries. The accident took place when the sisters were going to their school with their father on a bike on Tuesday morning in Burari area of North Delhi. The deceased has been identified as Pooja while the injured is Shivani. The police said that the accused driver, Padam Singh (33), who escaped from the spot was later arrested from his residence in Pradhan Enclave in Burari. The police said the accident took place at around 7.30 am when Munna lal, a resident of Kaushik Enclave in Burari area, was going to drop his two daughters to a nearby Government school. A senior police officer said, "When Munna lal along with his daughters reached the Hari Sweets shop in Burari Chowk, the speeding bus hit his bike from behind. Fortunately he escaped unhurt, but Pooja and Shivani were critically injured.”