CBSE 12th

Any field is fine. Knowledge of English language is required. So take this as your core subject.

Yes, you can do this course. Go for it.

Go through other engineering entrance exams such as WBJEE, UPSEE, BITSAT, COMEDK, CUSAT and others.

Hi Pranali,
You can pursue your education from National Institute of Open Schooling. Please visit their official website for more information.

You may try for WBJEE, IPU CET, UPSEE, and many more government college exams or try in BIT with JEE Mains rank card.
All the best.

Please refer to the link: https://goo.gl/s0oh8X

Hi Chandrabhan,
With arts stream, there is nothing to worry about. But what you need to do is write to the colleges and ask them personally if NIOS qualification will be accepted. NIOS is no doubt recognised globally but every university has their specific requirement. I am sure you will find options. Check and contact TAFE institutes too.

Hi Pawan, a first class is highly recommended. 75% is the recommended or preferred score.The exact score requirement can be easily checked on the university websites. You have a good profile, best of luck with your application.