I am from India and we have overall population of more than 1.25 billion people. Since we are talking about bitcoin users, there are around 10K bitcoin users in India which is far less than 0.01% of overall population. I am considering this as seeds and the fact is more than 65% population is below age 35 so there is tremendous scope for new technologies and business in my country.
As of now, I am unaware of any major business in India (other than bitcoin businesses) accepting bitcoins. I mainly use bitcoins to transact for my internet / mobile bills. Im sure we will definitely emerge as major bitcoin user base in near future. Our pro development government is cherry on top for bitcoins in my opinion.
Agreed, I am from India too and I don't think that bitcoin is too popular yet, there are very few people who are using it and its hard to find any shop to use bitcoins directly at a moment.
I think the popularity of bitcoin can be viewed from a variety of things you can see around your bitcoin users. if the user bitcoin pretty much around you is very likely bitcoin already popular in your area. and you can see a lot of stores that accept bitcoin as a payment method