It all started when some women travelling in a second class ladies compartment of the train, going from Karjat to the CST, heard a baby crying at Sion station. They looked under the seats to find a baby wrapped in cloth. The women immediately phoned the Railway Protection Force (RPF) control room, after which RPF and GRP staff received the infant at platform number 3 of Dadar station at 6.46 pm.

Government Railway Police senior police inspector Narendra Kulkarni said, "The baby was wrapped in cloth when she was collected by the police and new clothes were bought for her. Next day she was sent to the Shraddhanand Mahila Ashram, Matunga. The police are trying to find out who abandoned the child."

The police said that a case has been filed against the unknown mother under Section 317 of the Indian Penal Code (IPC) for exposure and abandonment of a child less than twelve years old. Acording to a woman commuter, "As the train was running, the baby was sleeping. When she woke up, she started crying. The police collected her, and new clothes and a milk bottle were purchased for her. She is such a sweet baby, I do not know how a mother can leave such a sweet girl."

There has been a sudden rise in abandonment of girl children.