You are asking a very general question, here is a narrow but somewhat insightful answer.
Lets assume this is a 50k, you have enemies in both China and Europe. Annnnd are Blitzkrieg
The good news is that most of the time, your enemies in China/Europe are going to be preoccupied with other enemies, so you have a bit of time and the element of surprise.
The bad news is your money will disappear on turn 3/4.
Your goal is to take as much of China / Eastern Asia as fast as possible. That is why I'm crazily buying air transports and filling them with a mixture of infantry and tanks.
Here is a general expansion I try to play a lot when playing blitz India.
Everything squared is a must for turn 1, everything that has a dot by it is a very good to have but not essential or kind of risky for turn 1.
And I'm too tired to make more squares so uh, here is typically what I would shoot for in the next turn
Also, the units tab is not accurate as I did not buy 17 air transports... I think I had like 10.
You need to have full Asia by turn 4/5 to be successful otherwise you will lose on money.
Typically I destroy some of the air transports after turn 2/3 to save on money.
Those are just rough estimates of what I look for when I play India.
I believe Sun Tzu made a fairly in-depth tutorial with India somewhere but I'm too tired to find it atm.