HEF was planned as a separate unit in the Pre-World War-II years, 1935-40 for manufacture of high explosives (TNT & CE) and Initiators required for AFK. Its foundation stone was laid on January 11th, 1940 at Western bank of Mula river at a site where the “Battle of Khadki” was fought between the valiant Marathas and British army in 1817. Major production at HEF started during 1942-44. Since its inception, it has been playing a major role in defence preparedness of our country. HEF Produce High Energy Materials, TNT, Liquid Propellants.