awww...i find this song serenely romantic. there is this uncanny combination of a sense of gratification and a desire for a more intimate rendevouz with your ultimate (the one) partner (who's right next to you at the moment)

i especially like the part where the duo goes:

"chalo chalein-- chalte hi chalte hi chalte rahein
khoob hasein-- haste hi haste hi haste rahein" and they laugh gently..and he goes: " dil pe kahan ikhtiyaar hai" with such grace. .awww...such a lofty portrayal of a soothing romanticism! (or a hopeless romanticism, you decide! )...either way,  simplicity i like and is definitely my type

a very well picturised song: pleasing weather....love buds in their own world ...on the road...good actors and what do i say about the singers? female's a legend and male's her perfect complement (especially in this song).

before i bore you with my long roundabout commentary, here it is-- check it out: