The Indian Mujahideen (IM) is emerging as one of the prime suspects in the Delhi High Court blast that claimed 13 lives and left over 75 injured. Three emails have been sent in the outfit's name claiming responsibility for the blast.

On November 23, 2007, the IM carried out serial blasts at the district courts in Lucknow, Varanasi and Faizabad. An email owning up the synchronised blasts was sent from a cyber caf in Laxmi Nagar here. These facts will have to be kept in mind. Though several IM terrorists have been arrested, many of them are still at large, said an officer.

While interrogation reports of the suspected IM terrorists arrested in different parts of the country are being re-examined, it is learnt that some travel agents in the capital have been quizzed.

Investigations revealed that two of the emails were sent from near Kolkata through a mobile phone. It is suspected that the phone and the SIM card used for sending the emails have been destroyed, suggesting that they could be authentic. The probe is still wide open, we cannot say for sure which group carried out the blast, said an officer.

Two Anantnag residents, who were picked up at Alwar in Rajasthan on suspicion, have been given a clean chit as prima facie no evidence has been found against them. They have not been detained, but their questioning will continue at least for another day. No one from the National Investigation Agency has contacted us, said a Rajasthan police officer.