There's a website I love: ImagesOfAsia.com. It features an eclectic and fascinating collection of old postcards from all over Asia, including over a thousand images of India. These are mostly paintings and lithographs or photographs in colour, black and white, and a few in sepia.
Many of these images are over 100 years old: there are street scenes and city scapes and portraits which offer glimpses into another time. I have often featured images from this collection in my blog posts.
I like the black & whites and especially the portraits. Here are a few I've selected: