Hello student if you're willing to pursue engineering after class 12 you need to take science stream (Physics Chemistry and Mathematics).

In the year of appearing class 12 board examination you can appear in various entrance examination for admission into top engineering college.

To get admission into NIT's IIITs CFTIs IITS and many others college you need to appear in jee main entrance examination.

Eligibility - Candidates must passed or appearing class 12 with physics chemistry and mathematics with minimum 75 percent marks aggregate from a recognized board.

Feel free to comment if you have any doubt

Good luck