A 17-year-old girl was allegedly gangraped and blackmailed for months using the video by eight men in Rajasthan's Alwar district, police said today after registering a case. After the latest extortion bid, they put the video online, and the girl and her parents finally went to the police station in Kishangarh Bas town to file a complaint, Deputy Superintendent of Police Atul Agarey told.The Times of India.The men had already blackmailed her of rs50,000, said reports quoting the police, adding that they demanded another rs 2.5 lakh recently. One of the accused, Sahil, already had some obscene pictures of the girl and had been threatening to make them public. He had called her on December 31 last year to a place near Gothra, where all eight men raped her and recorded a video, says the complaint. She was raped on January 3 and 6 too, it added.