The never ending geographical diversity in the Indian subcontinent is one reason to celebrate as not every country in the world has got this gift. You just need a reason to come out of your city otherwise there are endless options to explore.
20s is the time to go wild and become a wanderer! Make your bucket-list of all the places you want to see before you turn 30. Go as many places as you can because you can always make money, but not memories!