I am studying in class 9 now but what should I take in future to become computer engineer

Firstly You need to understand whether You want to go for Hardware or Softwares, In computer hardware You will get Jobs in companies like Intel, Qualcomm And You don't need to able to write codes But You need something different that is You should study electronics because they are the backbone for computer hardware For this You should take Maths at Your class12th and then You can Go for Electronics Engineering from any Engineering colleges.

For software Engineers, You need basically Two subjects One is Mathematics and Other is a Programming language. This is the most lucrative sector in the current scenario with many Jobs in Private sectors in India, Top Recruiters Include Google, Microsft, JP Morgan. To become a software developer You need to do Computer Science and Engineering from any Engineering college with same Procedure to take Maths in class12th.