The National Investigation Agency, NIA, has arrested four suspects from Ranchi in connection with the Patna serial blasts on 27th October last year ahead of Narendra Modi's rally in the city. Briefing media in New Delhi this afternoon, Director General, NIA, Sharad Kumar said, the agency has arrested alleged mastermind Hyder Ali alias 'black beauty' along with Mojibullah, Numan Ansari and a juvenile. He said, all the four suspects are SIMI operatives with close links to Indian Mujahiddin and have been found involved in Patna and Bodhgaya blasts. Mr Kumar said, with these arrests, all the important members of the terrorist module responsible for Bodhgaya and Patna serial blast cases have been arrested.