There's a documentary called Forest of Bliss about Varanasi. It's a non-narrative documentary (the best kind). From it's imdb page:

A look at daily life in the city of Benares (another name of Varanasi), India, one of the most religious places in the country.

It's streaming free on Prime (https://smile.amazon.com/Forest-Bliss-Robert-Gardner/dp/B01M...)