Where to buy quality posters in kolkata?

So today I'll be visiting a friend of mine, and I want to buy a few posters for him. I know this place next to the Indian Museum that sells pretty cool posters, but like their quality is not really that good and most of the prints are pixelated. Do yall know any other places in kolkata, where they sell good quality posters? Like band posters, movie posters, etc.