The investigation into the recovery of explosive material on the railway track on the Secunderabad-Wadi section near Mogala tanda and Malkhed Bridge gained momentum with the arrival of a seven-member expert team from the Bomb Disposal Squad, headed by two officers Shivakumar and Shashikumar.
Police sources said the two officers inspected the seized material and conducted laboratory tests to ascertain their intensity.
They also visited the two spots and questioned keyman Tuljaram, who foiled the attempt to blow up the railway track. Police officials from Bangalore refused to speak to the media. The officers have decided to prepare sketches of the four men, who were found near the track, with the help of Mr. Tuljaram.
