Agar Main Kahoon Mujhe Tumse Mohabbat Hai is a beautiful hindi song from 2004 bollywood film Lakshya. This song is composed by Shankar Ehsaan Loy. Alka Yagnik and Udit Narayan has sung this song. And of course lyrics for which you are looking is written by Javed Akhtar.
Song : Agar Main Kahoon Mujhe Tumse Mohabbat Hai
Film : Lakshya
Singer : Alka Yagnik, Udit Narayan
Music : Shankar Ehsaan Loy
Lyricist : Javed Akhtar