State-owned organization; conducts engineering for Department of Atomic Energy's heavy water installations; supply of seal shafts, condensate vapor accumulator and an evaporator heater for the Fertilizer Corporation of India (FCI), which operates an ammonia plant that supplies the unsafeguarded Talcher Heavy Water Plant; supply of pressure filter and carbon dioxide heater to the Rashtriya Chemical and Fertilizer (RCF) ammonia-hydrogen exchange plant which supplies the unsafeguarded Thal Vaishet Heavy Water Plant; supplier of stainless steel tower to National Fertilizer Ltd. (NFL), supplier of pre-enriched hydrogen gas to the unsafeguarded Nangal heavy water plant; hired to control and monitor cooling water system of National Fertilizer Ltd. (NFL) plant at Nangal, supplied cooling water system to Krishak Bharati Cooperative, Ltd. (KRIBHCO), which operates monothermal ammonia-hydrogen exchange plant which supplies the unsafeguarded Hazira Heavy Water Plant; supplied noise silencers to Bharat Heavy Electricals (BHEL), which supplies major components for unsafeguarded Indian nuclear reactors; supplied ammonia cracking catalyst to the Nuclear Fuel Complex (NFC).

Conducted eddy current scanning of heat exchanger tubes for Larsen and Toubro; rendered technical services to Fertilizer Corporation of India (FCI), Rashtriya Chemical and Fertilizer (RCF), and Southern Petrochemical Corporation (SPIC) at Tuticorin, which operates a monothermal ammonia-hydrogen exchange plant which supplies the unsafeguarded Tuticorin Heavy Water Plant; provides technical assistance to the Gujarat State Fertilizer Corporation, which operates a monothermal ammonia-hydrogen exchange plant which supplies unsafeguarded Baroda Heavy Water Plant, and Krishak Bharati Cooperative, Ltd. (KRIBHCO) which operates the monothermal ammonia-hydrogen exchange plant which supplies unafeguarded Hazira Heavy Water Plant.

Supplied vanadium pentoxide catalyst to the Iranian Defense Industries Organization (DIO) Parchin Chemical Factory for use in its sulphuric acid plant; products manufactured include noise silencers, reactors, crystallizers, heat exchangers and pressure vessels made of carbon steel, alloy steel, stainless steel and non-ferrous metals, electric fusion welded pipes, and pipe fittings.

Offers evaluation services for catalysts, absorbents and solids, including pore volume and porosity testing, surface acidity testing, chemical analysis, water absorption capacity, attrition loss, mechanical strength, particle size analysis, thermal analysis, thermomagnetics, ore microscopy, infrared spectroscopy, and X-ray diffraction.

PDIL, Rashtriya Chemical and Southern Petrochemical were all sanctioned by the United States in November 1998 for being "involved in nuclear or missile activities, as were all ammonia plants colocated with heavy water plants Baroda, Hazira, Talcher, Thal-Vaishet in Maharashtra, Tuticorin;" sanctions removed in October 2001, but this organization may remain on the U.S. "Entity List."