One of the timeless classic and one of my favourite from the movie, 1942 A Love Story. Singer Shivaji Chattopaddhay, Composer Rahul Dev Burman and Lyricist Javed Akhter.

dil naa ummid to nahi, naakaam hi to hai,

lambi hai gam ki shaam, magar shaam hi to hai.

ye safar bahut hai kathin magar

nA udaas ho mere hamasafar

1) ye sitam ki raat hai dhalane ko,

hai andheraa gam kaa pighalane ko,

zaraa der is me lage agar, nA udaas …

2) nahi rahanevaali ye mushkile,

ye hai agale mod pe mazile,

meri baat kaa tu yakin kar, nA udaas …

3) kabhi dhUndh legaa ye kaaravaa,

vo na_i zamin nayaa aasamaan,

jise dhundhati hai teri najar, nA udaas …