Maths Spl

along with practice, u need a good tutor who will not only teach u right, but will support u and try to give many tricks to do better.

Kunal, this is the portal for MBA admission related queries to Institute of management studies, Banaras Hindu University. I guess you need to post it in the correct portal.
Thanks!

Yes Ramakant, you can do. Biotechnology can be opted by both category of persons - those having PCM subjects and those having PCB subjects.

Not possible. You need to clear your exams first to be eligible to apply. Moreover you can apply for study visa after you have the acceptance letter from the college abroad, so if you don't clear your exams no college will accept you. Take gradual steps and slow down.

It is an excellent career option provided you can afford it.

Of-course. HSC in any stream is the eligibility criteria for BBA admission. As a commerce student, it will be more suitable for you. Mathematics is actually not commerce combination. But now a days commerce with Maths/ Computer Application - Science are available. This will help commerce students to turn their career into Science subjects such as BCA/B.Sc-CS/IT, B Arch (Maths) etc.
All the Best

Hi
If you are planning for DU, PCM + English is what makes best four so go ahead with PE as 5th subject.