Monjiris Tripathy, who was arrested by GRP from Madhupur railway station, was produced before the Howrah chief judicial magistrate's court during the day and sent to police custody.
Tripathy, who is posted in Kolkata at the Eastern Command headquarters, had allegedly compelled the 14-year-old, who had boarded the compartment at Howrah station, to consume alcohol.
She was then allegedly raped by two other army jawans inside the moving train. The two are absconding.
The girl's statement was also recorded by the sixth judicial magistrate during the day and her medical examination conducted.
The girl was found from the compartment when RPF raided the train at Madhupur station yesterday on receiving a message from RPF Howrah. Tripathy was then arrested.
The girl's father had lodged complaints that she had allegedly fled from home and was travelling by the train.

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