In a heinous incident taking place here in the national capital, four members of a family were severely beaten up by a mob near India Gate on Friday night. The family members alleged that there was no battery inside a toy car which was carrying their child. When they complained about it, one of the family members was allegedly slapped by the toy car owner. When another member from the family intervened in the situation, he was also beaten up with belts and sticks by around 40 people.