Song - Zindagi Mein Koi Kabhi Aaye Na Rabba
Film - Musafir
Singer - Richa Sharma
Lyricist - Dev Kohli & Kumaar
Music Director - Shekhar Ravjiani, Vishal Dadlani
Artist - Anil Kapoor, Sameera Reddy
Music On - T-Series

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