Which stream should I choose after 10th to become a computer engineer?
Better you can do diploma in Computer science and Engineering /information Technology.
If you want to be a Computer Engineer, you should choose Science stream after your class X. You should study Physics, Chemistry and Mathematics in your class XII. You should score very high marks in the class XII final examination (SYJC) to be able to become a Computer Engineer. Exact percentage requirement varies every year but you should obtain between 90 - 95% in aggregate of Physics, Chemistry, Maths and English.