Indrayani Biotech Limited, together with its subsidiaries, engages in the engineering, food and hospitality, dairy, healthcare and pharma, engineering, infrastructure, agriculture, and biotech businesses. It operates food court chains under the Nalla Sappadu brand; offers catering services; and food supply services. It also designs, develops, manufactures, and maintains, and services power electronics. Its products include FCBC, battery chargers, modulars, industrial and commercial on-line UPS systems, industrial inverters, AC/DC power supplies, DC-DC converters, servo-controlled voltage stabilizers, automatic rescue devices, and special purpose machines. In addition, it markets and sells microorganisms based bio fertilizers, bio pest controllers, bio fortified vermi compost and bio fortified coirpoth, as well as pseudomonas, beauveria bassiana, metarhizium, potash mobiliser, tricoderma viride, verticillium lecanii, humic acid, bio fortified coirpith compost, bio fortified vermicompost, MN mixture, NP virus, and VAM to farmers; and manufactures milk protein-based products, such as skimmed milk powder, milk protein concentrates, milk whey powder, whey powder and protein concentrates, evaporated milk, whole milk powder, dairy whitener, and casein protein under the EnNutrica brand. Further, it operates IBL Eyecare clinic at Tiruvannamalai, Nalam Multispeciality Dental Clinic at Chennai, and Lafuse Hair and Skin Clinic at Chennai; manufactures waste heat recovery systems package boilers, economisers, super heaters, steam drums, deaerator cum feed water storage tankers, blow down systems, dosing systems, heat exchangers, pressure vessels and storage tanks, water-preheaters, and air-preheaters under the IBL MATRIX brand; and produces organic vegetables, fruits, and other grocery industries and other establishments, as well as develops commercial and residential infrastructure projects. The company was incorporated in 1992 and is based in Chennai, India.