Biology Spl

Yes, for the first two years, you have to take courses in Physics, Chemistry, Biology, Mathematics, and Earth Science. I don't think that it's a problem even if you don't have biology in class 12th, the faculty at IISER-Pune is aware of this and are more than capable of accounting for it. Don't be surprised if, at the end of two years, you end up loving biology.

Thoroughly revise the B.Sc course according to the given syllabus.

If you want to do MBA then don't waste your time in B.Sc. Simply do BBA and if you are interested in science then go for B.Sc & M.Sc. Simply follow your interest, be the best and you will get the job (this rule applies to everyone and every subject).

Non circuit branches will work like civil, environmental engineering, biotechnology.

Yes, you have the prequisite marks for pursuing B.Sc nursing. Go ahead.
All the best.

Hello, This is the query that haunts every student as well as the counselor! Issue is what is good today may not remain good four years down the line. In addition always remember the adage "There is always room at the top". If you work hard and study diligently, you will find placements in branch. Do stop worrying and choose the branch that fascinates you the most.