Class 12-science

Hello Chandani,
Happy to know that you want to join India Army.
But for that, you have to do graduation in any stream and prepare for CDS (Combined Defence Service) exam which is conducted by Union Public Service Commission twice every year for recruitment to office cadre of the Army, Navy and Air force.
http://joinindianarmy.nic.in/
You can also search at the above link.

You can't do it this way.
You have to repeat class 11th and class 12th again with science.
If you can do it, then go for it.
If you decide to do it, please be firm and be prepared for opposition.

What I can tell you is, that you can't get admission on merit base in any good college expect private ones such as Amity University. But, it costs too much.
But, you u can get admission in IPU, Jamia Milia Islamia, DU or in other universities through entrance test.

You can do English honors or any other course even B.Sc through distance learning mode. Along with it, you can learn any foreign language. Japanese can be preferred or you can prepare for bank PO, along with your graduation or give it after graduation.

These are some government colleges in which you can apply for D.pharma.
Delhi Institute of Pharmaceutical Sciences and Research - DIPSR
Meera Bai Institute of Technology
University of Delhi - DU
Private college:
Baba Hari Dass College of Pharmacy and Technology
After doing D.Pharma, you can work at any medical store, or even pursue B.Pharma.

I think you should pursue B.Sc. Hons. Chemistry, and then M.Sc Applied Chemistry, further your choice. I think this is the best career option, because, after doing M.Sc Applied Chemistry companies and industrial area are open up for you, teaching, forensics, research chemist etc. are also good. So, go for it.

Hi,
With this percentage, you can not get admission on merit based. What you can do now is that you should prepare for cracking any entrance exam of your interest. For .Sc, you can go with Jamie, it also conducts entrance for various courses, IPU also conducts entrance exams, DU conduct entrance exams for two courses 1.B.Tech (IT & maths innovation) 2. BA
Both are good courses.

Yes, you have to give it only for that subject.

You can also improve your 12th scopes by filling up the improvement form. You have to give all papers next year and if you are willing, you can improve your scores.
I suggest you to focus on improving your score, it will open up many of the shattered opportunities for you.

No, it is not possible for universities which give admission on merit base but you can search and try for universities such as Jamia, IPU, etc. which give admission on entrance bases in various courses. But they are almost close now for this year.