Airtel, is on the brink of ending its 15-year-long relationship with creative agency, Rediffusion - Y&R. Rediffusion has handled the brand since its inception in 1995, and has been with it through various ups and downs.According to afaqs the account is on its way to JWT India.Apparently senior officials at JWT,were unavailable for comment. Looks like Rediff is having real tough time with two blows in the same month. Its only last week they lost Colgate-palmolive to Bates !! Apparently, Airtel has been "dissatisfied" with Rediffusion for quite a while now, with talks of it threatening to move out of the agency doing the rounds in many an agency hallway.