Their terms and conditions are ridiculous. Old YouTube premium users can't opted for it. You need RBI enabled auto debit/credit card. I would rather burn coins and eat pizza than waste it on youtube premium. There are many platforms that sells youtube premium at low prices.
This is so weird. I literally did it. I would've posted pictures of pizzas instead of the box if I had seen the post. And yes, I burned flipkart coins to do that.