CBSE 12th

That totally depends on you because if you choose biology, you may become a doctor/nurse and if you choose fashion designing, then you become a fashion designer.
In my opinion, you should opt biology because fashion stream is not reliable. Very few people can make their career in this field and also, fashion changes so rapidly that not everyone can manage it. But if you opt for biology and become a doctor and for once, let's assume you can't get a job, you can still open your clinic.
So, that is a much satisfactory course than fashion designing.
Hope this helps.

It is your personal choice but before you apply for the visa, you will require the admission offer letter from a foreign college. You have to know the eligibility criteria and apply before the deadlines. Once you have the offer letter, you can apply for the visa. You must also show sufficient funds to bear the tuition fee and living expenses.

You cannot do two full time programs, you may do both through distance mode or one of them through distance mode other in full time mode. Also, you have to check the course level and eligibility.

I think with this percentage, you can't get Bachelor's degree, but you can do vocational course for this from any private institute. As in MAAC, which is famous for VFX and game animation developer.

Hi Shivam, here are the best ones.
https://www.shiksha.com/mass-communication-media/colleges/b-j-m-c-colleges-india.

Hi Rahul, please select the location and courses from the link below to view relevant options
https://www.shiksha.com/humanities-social-sciences/colleges/b-a-colleges-india.

Eligibility for pursuing b.sc is 50% of marks are required as 12th percentage with science stream but the percentage may vary from state to state and from institute to institute. Some Institute may conduct an Entrance Test as well.
So it depends on university which you want to adopt

The serial number of class 10th and class 12th marksheet is written on the topmost left hand side corner.
Hope this helps.

You have not mentioned in your question that where exactly you wants the admission i.e in Himachal or in other states. However, you can get admission in most of the Indian universities, but subjected to your percentage should meet the required cut offs, and you should have legit migration documents.

Maths Hons. and other B.Sc. courses are offered on merit basis only. The entrance exams in DU are for the following courses:
BBE
BMS
BFIA
B.Tech ( Information technology and Mathematical innovation)
Bachelors of elementary education
B.A. (Hons) humanities and social science
B.A. ( Hons) multimedia and mass communication.