Chandrasekaran, previously chief operating officer and executive director, takes over from S Ramadorai who is stepping down from the executive role to take the position of non-executive vice chairman, said a press release.

Aman Mehta, independent director on the Board of TCS said, "Chandra is extremely well-equipped to take over the mantle from his illustrious predecessor, Ram. This has truly been a seamless transition process."

Assuming the new role, Chandrasekaran said, "I am taking over at a time when Ramadorai has ensured a strong position for TCS as a $6 billion company and a global IT services powerhouse. With our strong customer base, full services offering, multi-domain capability, and presence across emerging markets, I believe that we are optimally positioned to take advantage of the opportunity in the global market."

Commenting on the appointment, Ramadorai said, "Over the last 13 years, we have seen a tremendous transformation and growth not only in TCS but across the Indian IT services industry as a whole. I wish Chandra the very best, I am sure he will steer TCS to its next level of development and growth."

Ramadorai is retiring from his executive position after 13 years as CEO, upon reaching the retirement age of 65 years as per the company's governance policy. He will remain involved in the company as a non-executive vice chairman and a member of the board of directors.