Mukherjee was previously the general manager of RK Swamy/BBDO. He will control the day-to-day running of Rediffusion DY&R and help to win new business. He will report to Santosh Sood, the chief operating officer.
Mukherjee said: "I switched mainly because I wanted a larger platform to work on. My functions will remain similar to what I was doing at RK Swamy/BBDO, but now I want different challenges and to work on new and bigger brands."
During his career Mukherjee has also worked at Grey Worldwide, Lowe, Triton Communications Delhi and Publicis India.