This one is an extension of a very beautiful line from the movie Love Aaj Kal
Bichadne se pehle ek akhri baar milna kuon jaruri hota hai
Nazaron se na chin jaye tab tak niharna kuon jaruri hota hai
Alvida kehte hue ek bar muskurana kuon jaruri hota hai
Phir safar mai us muskurahat ko yaad karna kuon jaruri hota hai
Titli jaise yaadon mai doobjana kuon jaruri hota hai
Mulakat hoti rahegi yeh dil ko samjhana kuon jaruri hota hai
Ek chota sa aansoon ankhon mai aana kuon jaruri hota hai
Bichadne se pehle akhri baar gale lagana kuon jaruri hota hai
Bichadne se pehle ek akhri baar milna kuon jaruri hota hai
Nazaron se na chin jaye tab tak niharna kuon jaruri hota hai
Alvida kehte hue ek bar muskurana kuon jaruri hota hai
Phir safar mai us muskurahat ko yaad karna kuon jaruri hota hai
Titli jaise yaadon mai doobjana kuon jaruri hota hai
Mulakat hoti rahegi yeh dil ko samjhana kuon jaruri hota hai
Ek chota sa aansoon ankhon mai aana kuon jaruri hota hai
Bichadne se pehle akhri baar gale lagana kuon jaruri hota hai