You can find the full lyrics for the popular romantic track "Agar Tum Saath Ho" from the 2015 Bollywood movie Tamasha at the following websites: Genius , Bollynook , Hindi2Lyrics , and BollyMeaning . The song, composed by A.R. Rahman, features vocals from Arijit Singh and Alka Yagnik.
Agar Tum Saath Ho (Romanized) – Alka Yagnik & Arijit Singh