Our Identity

         Executive leadership  (Board of Directors)




dg rao
Mr. D.G. Rao

Mr. D.G. Rao, Chairman, Ion Exchange Services Limited had done B Sc., AMIE. He is trained in the plastic industry (1948-49) followed by power stations (1952-53) and then in Transformer Design with Crompton Parkinson (Works) Ltd., (1955). Thereafter he joined J. Stone (I) Ltd.'s Permutit Agency Department in 1955 as a commissioning engineer and helped in sales and setting up local manufacture of water treatment plant. In 1965 he joined Ion Exchange (India) Ltd. (IEI) as Manager - Sales and was later appointed as General Manager - Sales & Contracts in 1967; he opted for retirement from IEI in 1974. From 1974-77 he was a partner of Materials & Services, Bangalore and helped to set up and expand their business as agents for IEI. He worked as a Consultant in industrial water treatment from 1977-79 and directed plant and process development programmes. Rejoining IEI in October 1979 as General Manager - Corporate Development, he helped in setting up the Water Treatment Chemicals Division, by introducing electrochlorinators and water quality products to the Indian market and expanding IEI's polymer and carbon sales. After retiring from IEI as Vice President - Corporate Development he joined the company’s Board of Directors in 1997.





dinesh sadashivan
Mr. Dinesh Sadasivan




Mr. Dinesh Sadasivan is ED and CEO of Ion Exchange Services Ltd, pioneers in the field of Total Water and Environment Management. He is also a member of Corporate Management Team of Ion Exchange (India) Ltd. and Director of Total Water Management Services (India) Ltd.

He is an Engineering graduate with Masters in Marketing Management from the University of Mumbai and has over 18 years of extensive experience in General Management. He joined Ion Exchange (India) Ltd. in 1993 and focused on the after-sales service business and consolidated the complete service operations as an independent company in the form of Ion Exchange Services Ltd. His key responsibilities include strategic business planning and goal- setting, monitoring business operations, human resources management, national & international service business development and organizational development in general. Based at Bangalore, he travels extensively, particularly throughout  Asia.

Under his executive leadership, Ion Exchange Services Ltd. has emerged as the largest, organized & branded service network in water treatment industry across Asia. He has spearheaded the company’s several Value Added Service initiatives and added various products & services in the business of Ion Exchange Services to optimize usage of water as also conserve and reuse it for sustainable development. His sole determination led to IESL owning a brand new integrated large corporate facility in Bangalore titled ‘ION HOUSE’ with latest ERP systems from SAP. He has obtained many firsts of its kind recognitions for IESL business like the prestigious Commendation from Indian Merchant Chambers Ramkrishna Bajaj National Quality Award under the service category and signed many strategic tie-ups for business expansion, the last being with Kirloskar Brothers Ltd.

He is also a professional trainer in the area of soft skills development and member of various associations such as International Facilities Management Associations, Indian Association of Amusement Parks & Industries etc. He has attended many management programs conducted by premier institutions like the IIM’s.





Mr. Rajesh Sharma
Mr. Rajesh Sharma is Chairman & Managing Director and on the board of Director of Ion Exchange (India) Ltd and Ion Exchange Services Ltd, the leaders in water treatment having experience of more than 4 decades in providing Total Water Management solutions to all sectors – homes, industries & communities, urban & rural.  Mr. Sharma joined the Company in 1974 and has held a number of sales, marketing and management positions.  Before taking up the office of Managing Director from 1st April 2000, he was the Deputy Managing Director.

He established the company’s international business division, including its 100% EOU and has developed business relationships with leading engineering contracting companies and business & technology partnerships with leading companies in Europe, Japan, South East Asia and the Far East.

Mr. Sharma has extensive knowledge about the company’s technologies and products, and possesses outstanding marketing expertise and leadership ability.

Mr. Sharma is a member of various National Committees of leading Engineering Associations.  He has chaired technical seminar sessions organised by various Associations and also presented papers in India and abroad on water and wastewater treatment and water conservation topics.







m p patni
Mr. M.P.Patni




Mr.M.P.Patni, Director on the Board of Ion Exchange (I) Limited and Ion Exchange Services Limited, is an engineering graduate from BIT, Mesra. After working for 4 years with Hindustan Motors he got associated with Marketing and Selling of Projects, Water treating equipment & Resin of Ion Exchange (India) Ltd. and has helped to win prestigious large contracts ever since. He joined the board of Ion Exchange (India) in 2001.







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