09 August,2012 08:25 AM IST | | Sandip Kolhatkar
"We are searching for eyewitness who have seen the suspects parking bicycles or keeping explosives in their carriages," a Crime Branch official, who has been given the responsibility by the ATS officials to locate eyewitnesses, said.
Investigators suspect that bomb planters avoided using cellphones for communication purpose while planting the explosives, as police officials did not come across any suspicious call records.u00a0