The deceased has been identified as Abraham Mathew Pullil, a resident of Kerala.
The mishap occurred in the morning when Pullil lost his balance and fell off on platform number 1 of the station after the train gathered speed.
Pullil, working as a priest, shifted to Mumbai only three months back and was staying in a church at Naigaon area here.
"As soon we got information about the incident, our constable rushed him to Sion hospital, where he was declared dead," the official said, adding Pullil had suffered severe injuries to head.
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