Chandigarh, April 3 -- The investigation into the recent blast outside the Punjab BJP headquarters in Sector 37 has taken a dramatic turn as Chandigarh is placed on high alert following an anonymous threat to "set the city on fire."Security agencies and the Chandigarh Police scrambled into action after an unidentified caller made a threatening call to the Police Control Room on Friday. It came amid reports that the primary suspects in the grenade attack managed to evade a joint police raid just hours before security teams reached their hideout.
Sources close to the investigation revealed that the two suspects, identified as Aman Singh alias Bholu and Gurtej Singh of village Rattangarh in Ropar district, had reportedly returned to their hom...