Nearly 40 years supplying India's water treatment industry

Our story

Bluestone Supply Agency was established in 1986 by Mr. S. M. Agarwal in Kolkata, in the business of water treatment plants and consumables. From the beginning, the firm focused on a simple promise: quality material, reasonable prices, and dependable supply.

We supply and trade filter media — sand, gravel, pebbles, anthracite and speciality media — along with filter nozzles and strainers for water treatment plants, and foundry and industrial minerals including silica sand, limestone and iron ore. Our materials are delivered all over India.

For more than two decades the business has been led by Mr. Pawan Agarwal, who continues the same approach: understand the requirement properly, supply exactly what the plant needs, and price it fairly. Much of our business is repeat business — plants that came to us once and kept coming back.

Who we supply

Our products have been accepted by some of India's most rigorous industrial buyers, including NTPC, Tata Steel (TISCO), Indian Oil, BHEL, ONGC, Oil India and National Fertilizers, as well as the country's leading water treatment companies — Ion Exchange, Thermax, Hindustan Dorr-Oliver, L&T, Paramount and others.