Three members of a right wing fringe outfit were arrested in Lucknow on Wednesday after they put up a dozen billboards in the heart of city deriding PM Narendra Modi while promoting UP CM Yogi Adityanath as a contender for the top job.“Jumlebazi ka naam Modi, Hindutva ka brand Yogi,” reads one of the billboards put up by UP Nav Nirman Sena. The Police has filed an FIR on the outfit.