Cachar Factory Blast: 4 Workers Killed At least 4 workers lost their lives and several others were injured in a powerful explosion at a rod manufacturing factory in Pangram, Udharbond, Cachar, on Sunday. The blast is suspected to have been caused by an LPG cylinder explosion. Rescue operations are underway, and the injured have been admitted to nearby hospitals. The exact number of casualties is yet to be officially confirmed.