The charge-sheet was filed before the Special Court, NIA at Panchkula, Haryana against Naba Kumar Sarkar alias Swami Asimanand, Sunil Joshi (now dead), Lokesh Sharma, Sandeep Dange and Ramchandra Kalasangra.
The case pertains to the criminal conspiracy which resulted in bomb blasts in the Attari Express (Samjhauta) train near Panipat, Haryana on 18th February, 2007.
This blast and the consequent fire in the train coaches resulted in the loss of 68 lives and injuries to 12 train passengers including women and children travelling in the train. In this terror strike, not only Indian civilians and government officials got killed and injured, but a large number of Pakistani nationals who were passengers also lost their lives.
The explosion and consequent fire in the train resulted in the incineration and destruction of several train coaches, thus causing huge loss to the property of the 
Indian Railways.
The Samjhauta Express (Attari Express) is a bi-weekly train that runs on Wednesdays and Sundays – between Delhi and Attari in India and Lahore in Pakistan. This train has played a vital role in improving the people-to-people contacts between India and Pakistan.
The initial investigation into these bomb blasts was done by GRP/ SIT Haryana Police and subsequently, in compliance of the order dated 26-07-2010 of the Ministry of Home Affairs, Govt. of India, New Delhi, NIA took over the investigation by registering the instant case on 29th July, 2010 .
NIA after taking over the case conducted investigation in various parts of the country including Delhi, Haryana, Gujarat, Maharashtra, U.P., Bihar, Jharkhand and M.P. to unravel the conspiracy hatched by the criminals to perpetrate this act of terror.
Numerous witnesses and suspects were examined and material evidence collected. The investigation conducted by NIA over a period of almost one year established that, the entire conspiracy was hatched between 2005 and 2007 by the accused Swami Asimanand, Sunil Joshi (now dead) and his associates like Ramji, Sandeep Dange, Lokesh Sharma and others at different places in Gujarat, M.P. and other places.
Investigation is still on to arrest the absconding accused who are still evading arrest and determine who were the other accused persons involved in this dastardly crime. NIA has announced a reward of Rs. 10 lac each on the absconding Ramji and Sandeep Dange and Rs 2 lac on Amit alias Prince who is also a key suspect and whose exact role in the crime is among the subjects of further investigation.