M/s. Karsandas Mavji was promoted by Mr. Karsandas Mavji himself in the year 1920. He started his business in 1900 in small way and getting experience, he started with reputation in 1920 in name and style of M/s. Karsandas Mavji. In the initial stage, the company was importing Dyestuffs, Chemicals and Allied Products and reselling in Indian Market.

Later on, in the year 1960, the company started manufacturing few chemicals like Aniline Salt, Copper Sulphate, etc. encouraged in initial successes, the company thought of manufacturing Dyestuff with in one broad productivity. At this stage the company was looked after by Mr. K. K. Rangwala and his sons, Mr. H. K. Rangwala, the present Managing Director of the company and Mr. K. K. Rangwala, present Production Director. After achieving success within 4 years time, company started manufacturing on big scale Direct Dyestuffs, was developing fast and having a good experience in the field for many years, and with good technical backup, the company started exporting their products to U.S. Market in the year 1971 with Direct Dyestuffs and then on regularly with Acid and Mordant Dyestuffs. Slowly the export activities expanded to European Countries and Far East Countries.

Today, the company is manufacturing full range in Direct Dyestuffs Reactive Dyestuffs (High / Mid Exhaust Hot, Cold and Vinyl Sulphone based), Acid Dyes, Basic Dyes, Chrome Dyes, Leather Dyes, Fast bases, Naphthols Fast Salt and Aniline Hydrochloride. The company has well equipped Laboratory and qualified Chemist.