The incident happened in Jantua village under Suiya police station of Banka on October 4, Superintendent of Police Chandan Kushwaha said in a statement.
The girl had gone to a field for grazing goats when three persons of the village allegedly raped her.
They made a film of the act and threatened the victim that the video would be uploaded in social media if she tells anybody about the incident. The girl remained silent due to the threat, the statement said.
Her mother then lodged a complaint with the women's police station and the three accused were arrested today, the SP said.
The mobile phone in which the video was made has also been seized and sent for examination, the statement said.
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