Ali, who allegedly also planted bombs at Bodh Gaya last year, had given up the idea of planting cylinder bombs as they were not that effective. After learning how to make bombs from "Inspire" magazine of banned terror group Al-Qaeda, they fabricated IEDs in pipe-elbow style, according to the charge sheet.
The charge sheet in the serial blasts case, in which six people were killed and 89 injured, also names Numan Ansari, Mujibullah Ansari, Umer Siddique, Azharuddin Quresh, Ahmad Hussain, Fakkruddin, Firoz Aslam, Iftheqar Alam and a juvenile.
According to the NIA, Ali and his associates were members of Students Islamic Movement of India (SIMI) and had been motivating and recruiting young boys from Ranchi and other places by showing them Jehadi videos.
This is the second charge sheet filed by NIA in this case.
NIA had filed the first charge sheet in April this year against Imtiyaz Ansari, who was caught by people when they were attempting to detonate a bomb inside a makeshift toilet in Patna.