The accused, identified as Shaik Azad, created a fake Facebook account in the victim's name and sent her nude pictures and demanded Rs 4 lakh, police said.
"The accused threatened the victim that if she does not pay the amount, he will upload her photos on social media after which she lodged a complaint on October 23," an official release said.
According to police, Azad, who belongs to Guntur district of Andhra Pradesh, collected the private pictures of the complainant from her friend's laptop and saved them in his phone.
"He was nabbed from Secunderabad railway station when he came to collect the money from the victim," the police added.
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