CBSE 12th

You can pursue B.S. in various fields of applied sciences.
Good luck.

You can write your state entrance as well as JEE Mains.

No, you will have to be a graduate first. Means you can appear in GATE after B.Tech and you can do B.Tech after 12th. GATE is Graduate Aptitude Test in Engineering. It is used to get admission in M.Tech, MS and PSU jobs. It is conducted by IIT and IISc every year. The exam is held in February every year and notifications comes in July.

Getting into Manav Rachna depends on your JEE Mains or UNI-GAUGE score. This college has excellent placements and companies like TCS and Accenture visit the campus for placements.

Hi Manpreet,
Of course, you can. IELTS has no requirements or eligibility.

CBSE is better because JEE is also by CBSE.

Just keep your basics clear, you need to solve previous year exam papers. You must keep practicing writing the answers with all the answers written clearly (neither too short nor too lengthy) with appropriate diagrams. Your good presentation skill will definitely fetch you good marks and you can achieve your target.

Hello A T,
As per your marks, you will get a good NIT, but you're not sure about the board result. It is better, you apply for MIT and Thapar University. You can apply for state level engineering colleges of Madhya Pradesh and Maharashtra.