Yup, the part about exposure in your comment is true, the more you study/move, in country or abroad, the more exposure you get
It's a game of opportunity cost, I'm personally someone who struggles with FOMO quite a lot when it comes to my professional life and that's why take on way more projects than I should.
On the other hand, most, if not all, of these people will come back. Take it from someone who's classmates went to Oxford and Queen Mary for their post grads. The job markets abroad, as compared to India, is much more stagnant. In my opinion, only those people who have nothing going on in India and no future here but enough family money to move have moved abroad
In my opinion, if you're earning that much, and enjoy working, do that and travel as you go along ¯_(ツ)_/¯
That's what I'm doing (minus the travel part at the moment :P)