MUMBAI, Oct. 21 -- Four days after 18-month-old Ariba Khan died after falling from the sixth floor of a building in Goregaon East, the police on Monday booked a 10-year-old girl residing in the same building for murder, as CCTV footage indicated that she had "deliberately pushed" the toddler into the duct beside the elevator, resulting in her death. On Tuesday, the 10-year-old girl was produced before the Juvenile Justice Board, which handed her custody back to her parents in view of her age, until further orders. According to the police, the incident took place around 9.30pm last Wednesday, when Ariba was playing with a cat outside their flat on the sixth floor of building no. 1 in Anjuman Society, Goregaon East. When her mother was unable...