Santosh served as the CEO of Future Brands for nearly 17 years. He has also served as the President of McCann, one of India's premier advertising agencies. Having spent over two illustrious decades in advertising, he has been involved in strategically building key brands for numerous local and multinational organizations. Today, he is considered a thought leader in the Indian ‘consumer brand' space.

Santosh is currently serving on the boards of Think9 Consumer Technologies, Dainik Jagran Group and Breakthrough. He is also a member of the Governing Councils of Mudra Institute of Communication, Ahmedabad & Praxis Business School, Kolkata. He has earlier served on the boards of ING Vysya Bank and OXFAM India.