Presenting Agar Tum Saath Ho Full VIDEO Song from TAMASHA movie starring Ranbir Kapoor & Deepika Padukone exclusively on T-Series. Enjoy the soulful songs of Tamasha movie 2015 in the voice of Alka Yagnik & Arijit Singh music directed by A.R. Rahman.br br br SONG: AGAR TUM SAATH HObr SINGER: ALKA YAGNIK, ARIJIT SINGHbr MUSIC: A.R.