CBSE 12th

Hi,
You are eligible for CCNA and certification. To do so you need to take proper training from a good institute or Networking expert. However, I would suggest if possible then continue your higher studies to get a better place in IT job market.

You are eligible for PG. You may opt for MSW, MBA, PGDCA, M.Com, MA, etc.

If you want to go with biology and maths in your career particularly on those two subjects then you can go for B.Sc, and then you are capable to pursue higher studies.

There is some simple progression for studying 12th maths. Firstly read the theory details of those chapters then practice a lot.

Graduation score matters for MBA, not 12th.

Hello Mahesh, yes you can get admission in SIBM Pune, provided you score high in the SNAP exam (cutoff is generally 98 percentile) and perform really well in the interview rounds. All the best!
P.S. You might be asked, in the personal interview(PI) round, about your low score in 12th, so better be prepared with a proper answer.

No you should have 60% or above for getting admission here in this college.

For which course and college/university are you asking?
Please clarify your question.