Amidst indications of a breakthrough in the July 11 train blasts case, police on Friday said some "big terrorist group" was behind the bombings but ruled out Al- Qaeda's involvement in the attacks that killed nearly 200 people.
"Our investigations have hinted at the role of a big terrorist organisation in the blasts," a senior official, attached to the Anti-Terrorism Squad (ATS) probing the case, said.
He denied the involvement of Al-Qaeda in the bombings and ruled out any link between the July 11 train blasts and the 9/11 terror strikes in the US.
Though he declined to give details about the probe as it was at the "final stage", informed sources in Delhi said at least six suspected Lashker-e-Taiba cadres had been detained for allegedly planning and executing the bombings with the help of members of the banned SIMI.
Leads were picked up by investigators from various states and the hand of the LeT was quite evident, said senior officials attached with the probe.
The sources said the blasts were part of LeT's policy of spreading terror in the hinterland after the 2002 sectarian violence in Gujarat.
They said the role of top militants Rahil, Fayaz and Zaibuddin Ansari was becoming clearer and they are suspected to be the persons who motivated others to carry out the attacks.