Introduction: 
The company was established in 1962 by Mr. Hemendra K. Thakrar and Mrs. Nisha H. Thakrar for the manufacture of basic drugs, fine and pharmaceutical chemicals. It was registered with Directorate of Industries as a SSI unit on May 15, 1963, registration number 11/24/0012/PMT/SSI. It was registered with the F.D.A. Initially process development experiments and trial production continued for two years. Actual production started in 1966. Initially basic drugs for tropical diseases like diarrhoea, amoebic dysentery, gastroenteritis, constipation, debility and bacterial diseases like T.B. and Leprosy were taken up-for development because billions of people in the developing countries are victims of these diseases.It was of great necessity that drugs for the common and more prevalent diseases were made available to the vast population. The company started in a humble way to contribute to this national goal.

Processes for all the drugs manufactured were established in the company's own R&D laboratories under the expert guidance of Mr. Hemendra Thakrar. The name of Heni Chemicals soon became well known in the whole of India for quality drugs. Quality has been the prime consideration for every new drug taken up or manufacture. The name of the company made its image abroad also. Quality drugs at competitive prices brought in export orders, which were executed repeatedly with success. This renewed the faith of foreign buyers and the export business continued to increase. In 1970, around 300 KG of Phenolphthalein valued at Rs. 12000/- were exported and in 2002, more than 25 tons of Phenolphthalein valued at Rs. 8750,000/- were exported.

Plant:
Manufacturing plant is located at Plot No. A-161, Wagle Industrial Estate, Thane, 400604, some 50 km south of Mumbai. The plant meets the requirements of the F.D.A guidelines.

Manufacturing facilities include glasslined reactors, M.S reactors, S.S reactors, sparkler filter, vacuum pumps, hydro extractors, cooling plant, boiler, driers, pulverizers, mixers. Major part of the plant is used for the manufacturing Phenolphthalein available in various grades.

Products are packed after testing and approval in sea- worthy fibre drums. Containers carry labeling as required by international transport regulations.