MUMBAI: Isobar India’s Gurjot Shah Singh has stepped down from his role as executive vice president- media after an eight-year stint at the network. The development was confirmed by Dentsu to IndianTelevision.com. Singh’s next move is not yet known. Having joined the agency in 2014 as account director at iProspect, Singh served a stint of nearly six years at Dentsu Webchutney