Yati Narsinghanand Saraswati, the mahant of Dasna Devi Temple and a controversial Hindu seer, has been detained by the police in Ghaziabad, Uttar Pradesh, following a First Information Report (FIR) filed against him for allegedly delivering a blasphemous speech against Prophet Muhammad. The FIR was registered on Thursday, based on a complaint by a police officer from the Sihani Gate police station.