CBSE 12th

Hello Jaiveer,
Of course you are eligible. NIOS is government recognized and this recognition is acceptable to all.

Hello Sachin,
Admissions to all Diploma courses have just got closed in Maharashtra. Now you have to wait till next year. Admissions are based on marks in 10th, so you don't worry.

Hello Rakshit,
It's good to think on this field since fees in Russia are far lower than in India at least for medical.
I think you can seek education loan from bank.

Hello Avadhoot,
Yes, admissions to VJTI are based on MHTCET only.

Hello Ramkumar,
I am afraid, along with B Com, you will not be able to study automobile engineering.

Hello Arpit,
There will be many opinions, many wishes, many commands, many entreaties but I would strongly advise you to follow your passion or fascination. Whatever subject it may be, go for graduation in that subject.

Hi,
Firstly, mathematics with commerce opens a variety of scope. You can go for B.Sc (only a few university offers that), B.Com, CA, BBA, CFA, actuarial science, BMM, BAF, BBI, BFM and MBA as per your interest.

Streams related to science are apt for you as you will be able to put your concepts of PCM in engineering discipline. If you have interest in physics then you can look for mechanical, civil, astronomy, aeronautics and electronics/electrical engineering. For chemistry you can look for textile, bio-tech and chemical engineering. So, in all you just need to look for your area of interest. Any discipline you choose not of your interest than you might face difficulties in future. So, take a wise decision before making any final call.

Major universities are admitting students to courses which are conducted by university's teaching departments through own entrance exams. Notification commonly released on March - April of every year. Please visit university's websites.
There are lots of self-financing colleges that offer B.Sc in genetics without entrance exams. The entry requirement is 12th with PCB.