Sleuths attached to the Special Investigation Division (SID) of the CB-CID, which is investigating the twin blasts in Bangalore-Guwahati Express in Chennai-Central on Thursday last, collected the video footage recorded in the CCTVs installed in Katpadi Railway Station on Monday.
Police department sources said that the sleuths went through the video footage recorded between late evening on April 30 and till the minute the Bangalore-Guwahati Express departed from Katpadi Station on May 1. They thoroughly inspected the video footage from to find any clues to help their investigation into the twin blasts, which had claimed the life of a 24-year-old Swathi and injured 13 others.