Police officers probing Wednesday’s serial blasts in Mumbai haven’t come up with any definitive leads yet but are pinning their hopes on tracking the owners of a scooter in which the bomb was hidden at Opera House, one of the three localities to be hit.
The bomb was a mixture of ammonium nitrate and high-grade explosive TNT.Central government sources said investigators were questioning people on the basis of their "previous known linkages", analysing call records, scouring the footage from CCTV cameras and trying to establish the origin of an email sent to a television channel soon after the blast for leads.
Union home secretary RK Singh — who conceded that investigators had not zeroed in on a definitive lead so far — indicated that the police had got the chassis number of the scooter on which a bomb was planted.
Sources said this would enable the police to track down the registered owner of the vehicle. It was not clear if the terrorists had bought the scooter or stolen it. “In such cases, terror groups often use assets of the underworld,” a police officer said.
Sources said they had not been able to clearly identify anyone planting the explosives from the CCTV footage, including the one at Opera House which was focussed on the blast site.
Singh said, “There are about 11 CDs (of CCTV footage) that have to be gone through. We have all the people and their faces (can be seen clearly). They have to be recognised to see whether they are locals or outsiders. That process is on. People who are not recognised have to be put through a database. The suspicious people are being verified.”
Also, the home ministry has told investigators to take a closer look at the email sent to a television channel that had the sender, purportedly from a terror wing of an unknown group espousing the cause of statehood for Telangana, taking responsibility for the blasts.