IDL Industries - the first in India to manufacture various types of detonators and slurry explosives for commercial use. IDL Industries Limited set up its detonator factory in 1967 at Hyderabad, Andhra Pradesh, India with technical assistance of internationally famous Hungarian and Yugoslavian manufacturers. Detonators manufactured by IDL are modelled after widely used European detonators developed after careful and systematic scientific research. IDL manufactures detonators of different types, detonating cords and other accessories. Today, IDL Industries Limited is the second largest detonator manufacturer in the world. When IDL decided to enter the explosive field, it was decided not to manufacture NG based explosives but only slurry explosives, a decision which was in line with the world trend. Accordingly a plant was set up at Rourkela, Orissa with American collaboration and production started in 1970. For historical reasons the American collaboration terminated and IDL had to fall back on its own research and development to formulate quickly, various types of explosives. The factory at Rourkela incorporates all the modern developments in the field of explosives and manufactures a complete range of slurry explosives for use in opencast mines, quarries, underground mines, tunnels and other construction projects.