Within days of the blasts, the
Nitish Kumar government in Bihar requested
Union Home Minister Sushilkumar Shinde to have the
National Investigation Agency (NIA) take over the case. As terrorists were planting the bombs at Patna Junction railway station, one of the bombs prematurely exploded due to a wiring error. One of the suspects planting the bomb, Tarique alias Ainul was critically injured in the blast and died a few days later. Interrogation of Imtiaz Ansari revealed that the bombings were coordinated by
Indian Mujahideen, a Pakistani-linked Muslim terrorist group operating out of India. Ansari confessed that the goal was to ring the rally ground with bombs and cause
stampede during the rally to kill as many of the participants, particularly women and children, as possible. In the initial days of the investigation, six suspects were detained for interrogation based on leads obtained by police from Imtiaz Ansari. Tehsin had been radicalized at a
madrasa in
Chikmagalur,
Karnataka in 2005 and has moved up the ranks in the terrorist group since then. After the blasts, the terrorist mastermind Tehsin Akhtar was revealed by news media as the nephew of Taqui Akhtar, a leader of the
Janata Dal (United), party which is currently in power in Bihar led by
Chief Minister Nitish Kumar. Taqui publicly disowned his nephew after reports of his involvement in the serial blasts arose in the media. He said that basic procedures mandatory for all public meetings, such as anti-sabotage checks and pre-event drills were not carried out by the
Bihar Police despite requests made by
Gujarat Police officials. BJP leaders, including former Bihar
Deputy Chief Minister,
Sushil Kumar Modi, asserted that the security lapses were a deliberate, possibly criminal attempt by the Bihar Chief Minister, Nitish Kumar, to take revenge on his political enemy, Narendra Modi. Nitish Kumar rejected this charge saying that he had directed police to make all necessary security arrangements for the event. On 5 November 2013, a tip-off in tracking one of the suspected masterminds of the blasts led the National Intelligence Agency to a small hotel in
Ranchi,
Jharkhand, 350 kilometers from Patna, where they discovered 9 live bombs just like those used in the Patna blasts. Police suspect that the Patna bomb blast suspects have been staying at this hotel. By April 2014, NIA had arrested eight suspects for their alleged involvement in the explosions. ==Verdict==