A map was recovered from a tea stall in Sangipur two-three days ago in which something was written in Persian language and the case is being investigated by the ATS, Deputy Superintendent of Police Sitaram said.
Security has been beefed up at the house of Cabinet Minister Raghuraj Pratap Singh alias Raja Bhaiyya, Ghuisarnathdham and at the railway station on suspicion that there maybe plans to blow up these places, the DSP further said.