The FIR pointed out that the accused persons booked by the Central agency were instructed to hurl hand grenades at public gatherings and processions in order to create communal tension.
Taking forward its probe into the activities of Islamic State following the arrest of its five alleged operatives in Hyderabad, the National Investigation Agency on Tuesday searched various locations in the city and recovered 17 rounds of ammunition, besides computers and scanners which were used for online communication.
National Investigation Agency brought Dilsukhnagar bomb blast suspect and Indian Mujahideen co-founder Yasin Bhatkal to Hyderabad on a transit warrant on Sunday.
The arrest of Arun Selvarajan is another reminder of how the ISI is trying to push its south India agenda.
A Delhi court on Tuesday extended till September 22 the National Investigation Agency custody of Indian Mujahideen co-founder Yasin Bhatkal after the probe agency said he was involved in "subversive activities" of causing bomb blasts in different parts of India since 2003.