The National Investigative Agency (NIA) special court on Tuesday issued production warrant against accused Gajendra Sharma in connection with planting an IED on the railway tracks at Ghora Sahan in Bihar's Motihari, on October 1, 2016.
Sharma had surrendered in court of Sub Divisional Judicial Magistrate, Raxaul earlier on February 13.
The court has also sent accused Rakesh Yadav to four-day police remand.
The agency earlier wrote to the Ministry of Home Affairs (MHA) demanding transfer of the case.
The Bihar Police have so far arrested three people in connection with this case while another two have been nabbed from Delhi.
The case was initially registered at Railway police station in Raxaul under section 150 Railways Act, Explosive Substance Act and it was later re- registered by the NIA that initiated a further investigation into it.
A two-member team of the NIA also reached Motihari to carry forward the probe.