K S Chakravarthy was national creative director for the agency, which he joined in July 2008.
It wasn't clear if he would be moving to any other agency, but he will be available for Ulka as and when required. Chax has been handling and overseeing all the creative work for creative, digital and interactive divisions of Ulka.
Chakravarthy, an electrical and electronics engineer by education, started his career as a copy-trainee with Clarion (now Bates 141). He soon moved to JWT and then, Enterprise. His career then took him to Chaitra (now Leo Burnett) from which he quit to set up his own production house, Persistence of Vision. During this time he was voted one of India's most respected ad film directors. He moved back to Rediffusion Y&R before joining FCB Ulka in 2008.
In his career spanning 34 years, Chax has worked on a variety of brands including Tata Docomo, Tata Motors, ITC, Coke, Cadbury, Lever, P&G, Goodyear and Reebok.