On Monday, a sinful news has came, a 10 years old boy allegedly sexually assaulted a three year old girl, at a slum in outer Delhi's Mongolpuri area, police said. The incident occurred on Friday. Both the minors were playing, when the girl came back home crying and complained of pain in her private parts, they said. As per police report official said, the girl's mother later approached police and alleged that the neighbour's boy had inserted some object on her private part. While the girl was sent for a medical examination and then for counselling, the boy was apprehended from his home and sent to a juvenile home, the official added.