Hema, Rekha, Jaya aur Sushma - sabki pasand Nirma.... we still read these lines with a tune, don't we? Ever wondered how tunes like this have managed to stay in our memory for so long? How do they affect consumers' psychology to create such an effect?  A team of students from IIM Ahmedabad takes you on a journey on the evolution of advertising jingles from the 13th century to the current digital age, bringing in their psychological effects and wondering what the future holds for them.Sit...