Based on intelligence, Army launched an operation at Marnai on Thursday and apprehended a person identified as Hobibur Rehman.
8 kg of explosives and 52 detonators were found in his possession, the spokesman said quoting delayed reports.
The individual was suspected to be a supplier of explosives to various militant groups in the region of Lower Assam.
The recovery on time averted major subversive activities, he said.