It was sung by Shinde

If the four songs from Samrat Prithviraj on this blog were arranged in the alphabetical order, Hari Har would be the second. 

And if they were arranged in the descending order of their durations, it would be the first – it was four minutes and 14 seconds long.

The song was sung by Adarsh Shinde, the popular Marathi playback singer, television anchor and judge of reality shows, who is renowned for singing songs about Dr B R Ambedkar and Buddhism.

It was written by Varun Grover, and composed by Shankar Mahadevan, Ehsaan Noorani and Loy Mendonsa.