MUMBAI: Dentsu India executive vice-chairman and chief creative officer Gullu Sen has put in his papers. He is currently serving his notice period. 
 
Sen had joined the agency in 2003 as executive vice-president and national creative director and in 2006 was promoted as vice-president.
 
Before joining Dentsu, he was national creative director at Rediffusion DY&R. 
 
Starting his career in 1984 with HTA, Sen has also worked at Grey and Mudra‘s Interact Vision.