Song - Kyon Ki Itna Pyar
Film - Kyon Ki ...It'S Fate
Singer - Udit Narayan, Alka Yagnik
Lyricist - Sameer
Music Director - Himesh Reshammiya
Artist - Salman Khan, Rimi Sen
Music On - T-Series

Set it as your caller tune - http://goo.gl/0ImA4c