Would suggest not relying on the cousin of a friend for your information and getting up to speed on the market you are interested in working in. Asian markets are certainly not growing "unexpectedly fast", in fact growth in many markets is slowing and not meeting targets.
The general path from college to an IB is via internships at an IB in the summers and then through very structured recruiting programs for first year analysts at the banks - which if you have not applied for in your last year of university, am afraid that you have pretty much missed the boat for entry level positions. First year analysts typically come in a class and all start at about the same time - which streamlines training and integration. Would very quickly start looking at bank websites for recruitment deadlines and get a better understanding of how they make junior hires. For someone who wants to work at an IB, it is honestly quite suprising that you haven't done this already and don't even seem to be aware of the process.