National Conference leader Hilal Lone has been arrested under the Unlawful Activities (Prevention) Act for allegedly delivering a “hate speech” at a rally during last year’s district development council elections in Bandipora, a senior police official said on Tuesday. Lone, the son of NC’s Member of Parliament Mohammad Akbar Lone, was arrested on Monday from the MLA hostel here where he was being held captive since December last year, the official said.