CBSE 12th

There are many state engineering entrance exams, exams to get into research field, check this link to get the list-
http://www.buddy4study.com/faq/list-competitive-exams-further-studies-after-12th

You can go for BBA or B.Com.

Hello Aditi,
I am sure you would have started studying for your 12th quite some time back. If this is so then you don't have to worry much. Since syllabus for both is same, the difference is only in pattern of exam. Give some time for answering mock exam for both. Depending on how you score in these exams, prepare for the final exam with more attention given to weaker subjects.

Hello Rakesh,
It's quite tough to prepare for these two exams in just five months. But, what is impossible in this world? Begin with making a timetable for study of different subjects and practice sessions of mock exam. Have some time assigned for relaxation too. Make an attempt.

Yes, you will get the admission.

Yes you can get placed if you answer your interviews well

If you score good marks, then you can get a scholarship for your higher studies. It will also benefit you during admission process.

DPT courses are not recognized by any universities these days. The colleges offering DPT are fake. You can do a Bachelor's degree of physiotherapy, which is for 4.5 years and follow it with Master's degree for 2 years in specialized fields. The eligibility criteria for BPT is science with biology in class 12th.

You can refer to the following link for ranking of engineering colleges in Bangalore which offer B.Tech CSE:
https://www.shiksha.com/top-computer-science-engineering-colleges-in-bangalore-rankingpage-46-0-0-278-0