Its an amazing lovely song. If you could understand the lyrics it would have been more interesting to watch. The story is that they have fallen in love with eachother via letters without even meeting in person. In this song they are expressing thosefeelings of long distance.
You should react to one of Alka Yagniks first hits. It's a song called "Gazab Ka Hai Din" from the film "Qayamat se Qayamat Tak". It was a huge hit film , and an adaptation of Romeo and Juliet. Really sweet song. But make sure you watch the actual version from the film, there is a modern RU-vid cover of it that has a lot of views and might show up high on the search algorithm.
The city in which the male actor is seen is Kochi (one of the largest cities in South India, Kerala state), Marine Drive. A place where women act I think the northern part of my country, Nainital, Uttarakhand state
You should listen to this song with English subtitles then you will understand the meaning of first love. There are many videos in Indian RU-vid channel. You must try to find English subtitles for each song of Bollywood. ❤❤ I hope you will get the results soon. 
Reminder number 1. Hey friends. I loved your reaction. I had requested you earlier to react on third famous Khan of Bollywood i.e Aamir Khan who is popularly known as 'Mr Perfectionist' in Bollywood. But you haven't considered yet. I once again request you to react on his most famous beautiful romantic video song 'chand sifarish' from his movie 'Fanaa'. You'll be amazed after watching it. Furthermore, i also request you to use subtitles of the song if available so that you can understand better the mood and feelings of the song. Please react as soon as possible. Thank you.