Which course should I take after my 12 so that I can earn more within a short time I would prefer a course related to pcmb
You can earn money in every field.
But one thing remember that there is no short cut to earn legal and real money .
It's all depends upon your capability and your working style and your presence of mind.
You can go in btech. ( Computer science ; electronics ; etc.)
You can go in business and startup.
You can learn coding and software works.
Etc.