The Armed Forces Tribunal has asked the Army to reconvene the Court of Inquiry (CoI) against Malegaon-blast accused Lt Col Shrikant Prasad Purohit on grounds of "irregularities" in the probe.
Purohit is the first serving Indian army officer accused of playing a major role in planning and executing a terror blast.
He has been charged under the stringent Maharashtra Control of Organised Crime Act (MCOCA) and has been in jail for the last two years.
The 4000-page chargesheet in the Malegaon blast case, apart from Purohit, also names Swami Dayanand Pandey. The other conspirators include Sadhvi Pragya Singh Thakur and retired Army officer Major Ramesh Upadhyay, both of whom were said to be members of the right-wing Hindu group Abhinav Bharat.
According to the chargesheet, it was Pandey who had instructed Colonel Purohit to arrange for the RDX used in the blast.
Purohit had come in contact with Major Upadhyay when he was posted at Nashik in the Army's liaison unit.
Seven people were killed in a bomb blast on September 29, 2008, at Malegaon, a communally-sensitive textile town in Nasik district Maharashtra. The probe into the blast had brought into focus some right-wing Hindu groups.