I can understand as I hail from a small town. Kolkata is no small town. You could find some decent places there. I suggest make a separate thread for asking demo places in Kolkata.
I have a recently bought 5650. A 9400 at home town. To my eyes, 5650 is sharp enough if you play a decent 1080 source. I sit at around 12 feet, but my screen is 120 inches. I can see the pixels if I stand at 3 feet.
I had issues with convergence, so I stood closer to screen to describe the problem to the Epson service engineer.
You won't see any pixels at 9 feet. And like I said many times before across multiple threads, Epson pop colors. So vivid. On a direct comparison, you will pick Epson over other pixel shifters in the range.
And other perks like lens shift and a trouble-free ownership. It is a proven model. You can increase the sharpness to your liking. I don't recommend that, though.
I will always suggest Epson to everyone. Not a fanboy, but they are good.
If you can stretch, Sony or JVC offer class leading projectors. But again, different technology and expensive.
Unless you have a perfectly treated room, spending money on higher end projectors is not worth.