Diljit Dosanjh, AR Rahman, Irshad Kamil reunite to present a soothing ballad about the love that refused to fade away when everything else was lost during the partition

With ‘Agar Tum Saath Ho’ becoming the most streamed Indian song since last week, AR Rahman recalls toiling through four scores to arrive at the ‘Tamasha’ track. He also credits “iconic voices” like Alka Yagnik and Arijit Singh to add magic to the song