Ruke Ruke Se Kadam

Ruke Ruke Se Kadam, Rukake Bar Bar Chale
Karar Leke Tere Dar Se Bekarar Chale

My feet, which have paused from moving on, are moving on with pauses
With promise (probably not to come back), they have left your place with uncertainty

Subah na aayee, kayi baar nind se jaage
Thee ek raat ki ye jindagi gujar chale

The dawn never came (yet, i) woke up from my sleep a number of times
(I) Have moved on through this life of one night (life of darkness)

Uthaye phir deke ehasan dil ka sine par
Le tere kadamon pe ye karz bhi utaar chale

Have (now) lifted (my feet to move on) with all your favours taken out from (my) heart (may be referring to the warm memories)
(Am moving on) by repaying this (the favours, the sweet memomries) loan (of your memories) in your feet

Summary:

The protagonist is moving on in life with lot of uncertainty about future and hence is taking some unsure steps forward. The last phase of life was probabaly of darkness, yet while moving on, she repays or leaves the loan of favours.