This is 2006 Bollywood comedy movie Bhagam bhag song sung by Kunal Ganjawala, and Sunidhi Chauhan

tere bin kahee lagta hee nahee dil
kya karu me kya naa karu hai muskil
aise hal me chain vain aaye naa, abb toh akele jiya jaye naa

hai aarju too rahe rubru, bas tere nam se jindagee ho shuru
dekhu jighar aaye too hee najar, iss kadar har jagah ho sanam too hee too
tanha mujhe chain aaye naa, dil ko koyee samjhaye naa

abb toh akele jiya jaye naa - (2)

milake ke kabhee abb naa ho ham juda, pyar ke rang me humko rang de khuda
too khush rahe meree dhadkan kahe, rat din rab se me yehi mangu duwa
dur kahee too jaye naa, yad teree tadpaye naa

tere bin kahee lagta hee nahee dil, kya karu me kya naa karu hai muskil
aise hal me chain vain aaye naa

abb toh akele jiya jaye naa - (2)