MUMBAI, July 28 -- An online friendship spiralled into a four-month nightmare for a 21-year-old Goregaon college student, who allegedly was sextorted and forced to pay Rs.9.3 lakh in 55 instalments after a woman and her male accomplice threatened circulate an obscene video of the victim on social media. The Bangur Nagar police have booked the duo for extortion and offences under the Information Technology Act. According to the police, the student met the woman, who identified herself as Aahana, on Snapchat in March. The two soon became friends, exchanged mobile numbers and began speaking regularly. During one of their conversations, the woman allegedly initiated a video call and persuaded the student to undress and send her a video. Trusting her, he sent her an obscene video of himself through Snapchat. The woman then allegedly began threatening him with the video. "She and her male accomplice started demanding money from him, threatening to make the obscene video viral on social media if he did not pay," a police officer said. However, the threats and demands allegedly continued. The student finally approached the Bangur Nagar police on Sunday. The police then registered an FIR against the duo....