The accused have been identified as Md Abed Khan alias Banty, Md Arif, Wasimuddin Ansari alias Bhuma, Md Nasim, Firdush Iqbal, Md Tanveer, Sanjay Shaw, Md Chand, Aakash Singh, Md Sohaib Aktar, Md Aakbar and Sagar Singh, the NIA said in a statement.
The chargesheet, which was filed before a special NIA court here, has exposed a criminal conspiracy behind the attack, said the statement.
Pandey and his team were attacked with explosives and firearms near gate number 3, Anglo Indian Jute Mill staff quarters, Bhatpara on August 28. His driver Ravi Verma and a close aide Rabi Singh had received gunshot injuries in the attack.
The attack took place when the convoy was on its way to the house of former MP Arjun Singh.