TBWA India chairman and managing director K George John said, "We have strong operations in the South across Cochin, Bangalore and Chennai. Some of our key clients there include Standard Chartered Bank, Henkel Spic, Sundaram Mutual Fund, Geogit Securities, Naturo Brand of Nutrine, Malayala Manorama, and Apple Computers. We believe Kaustav has the capability for leading this operation and adding value to the businesses."

Das has 13 years of experience in the advertising industry. He started his career with the Kolkata branch of Sistas (now Saatchi & Saatchi). After spending one-and-a-half years in Kolkata, he moved to O&M, Bangalore followed by a six year stint at Lintas Bangalore.

During this stint, he was deputed to Hindustan Lever between September 1999 and March, 2000 as brand manager, oil business. After this, he joined Lintas back as planning head for HLL's foods portfolio.

After that, he moved to Mudra, Bangalore, as client servicing director where he looked at deodorant brand Fa and infotech major Satyam Computers. Thereafter, he had a brief stint as general manager – client servicing at RK Swamy/BBDO.

Following this assignment, Das moved in as vice-president, Euro RSCG, Chennai, where he spent about two years.