Dekha Jo Tumko Ye Dil Ko Kya Hua Hai is a beautiful hindi song from 2000 bollywood film Kasoor. This song is composed by Nadeem and Shravan. Alka Yagnik and Udit Narayan has sung this song. And of course lyrics for which you are looking is written by Sameer.
Song : Dekha Jo Tumko Ye Dil Ko Kya Hua Hai
Film : Kasoor
Lyrics : Sameer
Music : Nadeem, Shravan
Singer : Alka Yagnik, Udit Narayan