Preparation From Own Country
I'm am just going to throw in all my thoughts without filtering it too much.
The idea is to not to get all of it done, but to help you think, how you might get that one extra feather that will help you get that job/course you are eyeing and be a step above the others and help nurture your own interests.
Do explore all options and get your hand on all the opportunities before leaving your own country.
Nowhere can beat the freedom, convenience, cost-effectiveness, opportunity, equality, and most importantly least paperwork, that India or your own country offers.
Conference / Paper Pres /Poster pres
Research Opportunity /Externship