He has also been inducted to the Board of Directors as a whole time director, the company said in a statement.
"Over the years, Sunil has played a more central role in the leadership of the company and with his elevation to CEO, he will take on an even wider role. Over the last few years, he also managed the portfolio management business and the Singapore business from end-to-end, with great results," Sundaram Mutual's Managing Director Harsha Viji said in the release.