A former NSUI district unit president was arrested on Tuesday for allegedly harassing a woman college student here, the police said.The woman had complained to the college authorities that former NSUI president Irfan and three others had misbehaved with her in the Sadar Bazar area, they said. After she complained to the authorities, the accused allegedly had threatened her and a video of the incident went viral on social media on Monday. The police said that as the issue concerned members of different communities, a case was immediately lodged against Irfan and others who were identified as Nadeem, Kamran and Shahroz. Some Hindu organisations had also burnt Irfan’s effigy and submitted a memorandum to the authorities for immediate arrest of the accused, they said. SP (City) Dinesh Tripathi said Irfan was arrested on Tuesday and a hunt has been launched to nab the others. Meanwhile, Congress district unit president Kaushal Misram said that Irfan has been suspended from the party.