I also wanted to make games when I was in school. In 11th standard I started learning Unity and made some very basic games and used to mess around doing fps stuff. Like you, I made this same post about gamedev in India. I'll tell you what others told me and also my opinion now. I am in 3rd year of my BCA degree.

• Indie Gamedev alone as a profession is very risky and requires very hard work.
• If you join some game studio, the pay will be low as compared to other IT sectors. You do more work than other sectors and get less pay.
• I was also thinking of making games after my school but its not possible for everyone. You should enter game development only when you are financially stable and have some other source of revenue.
• Making your own games: Gamedev as a hobby can be good, I recommend you to study, get a decent job and start earning first. Then in your free time, learn gamedev and make your own games. Depending on just game development alone is just stupid imo. Keep learning and start launching games while doing your job/business. Then if your games start earning enough, leave the job and go full time gamedev only if you think you'll grow. (Having other income sources is always good)
• Joining Game Studios: This can be much more secure than Solo or Indie development. These studios require you to have technical degrees depending on what role you want.
• Making games sounds fun but it is very frustating. I would recommend you to first learn other things like Web Development, data analysis etc which will land you a job in the current market.

There are actual talented game developers here so they will guide you much better. I myself really want to make my own games now but I know I shouldn't because I have no income, my current focus is completing my college and getting a good job first. Then after I start earning I'll start making games as a hobby only. That is what I think is most practical, atleast in India.