I know some POPs don’t serve free plans, but I haven’t seen an official list. I think it changes from time to time as costs come down. I don’t know if they limit how much of your traffic would go through a more expensive POP. I’ve not heard of such an arrangement.
Blocking countries from your website most likely won’t change this. Maybe a paid CDN company has datacenter in India. But at that point, you could just pay for Cloudflare. I’ve used KeyCDN in the past and their prices are decent, though Asia traffic costs 3x Europe/North America. They have a POP in Bangalore. Maybe the $20/month here is the best deal.
You can certainly turn off the Cloudflare proxy by setting your DNS entry to 
. You’ll get very fast DNS performance, with the benefit of your local datacenter.