CBSE 12th

Yes, you can apply in top colleges for admission. With this percentage, you can get admission.
Good luck.

Affordable is the wrong word.
There are so many good colleges for BJMC in India. IIMT University is a private university where your word affordable is not justified. Go for MICA, Ahmedabad, NIMCJ, Ahmedabad, Symbiosis, Pune and many more.

Yes, you are eligible and check the college list and previous year cutoffs.

75% marks minimum required for JEE Main, but you should try at one if you want to crack JEE Advance, then you should need the best trainer for IIT JEE Preparation. The best trainer provides the best way. So, you should join the top Kotak Coaching Classes. According to me, Vibrant Academy is the best option for you, because they have India's best trainer in one place. The faculty member of the institute is well experienced. I am also a student of Vibrant Academy. I studied here last one year. https://www.vibrantacademy.com.

Please check this link of Shiksha college predictor:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Hello,
Yes, you can take admission in this college. But, for more information you should fellow this below link.
https://www.shiksha.com/accounting-commerce/course/b-com-hons-shaheed-bhagat-singh-college-sheikh-sarai-delhi-244514
Thanks.

It depends, where you want to take admission, like in Haryana you can get admission with this marks in colleges under Maharishi Dyanad University etc., but in Delhi it would be quite difficult.
Try entry through entrance exam options too.
In Rohtak, PGI medical check their criteria for admission I think you can get admission there check for it.

First of all, just clear your backlog with good score and for that practice more n more. After clearing all your subject find a good and reputed college for your further study.