Science

The only options are taking maths as an additional subject but if you are in 12th, it would be difficult to register with board. Alternatively, take maths from NIOS and, you may join course of your choice. VIT does offer B.Tech in biotech for bio students where they can take up a bridge course in mathematics.

B.Sc in Aviation and Airport Management is related to all about management of aviation industry. This is a good course but as of now, very less scope is available. If you want a good career in this, you can pursue MBA in Aviation Management after your B.Sc. and also in India many Airports are on verge of Privatisation. So, it will give you good options in future and also, many airlines would be coming in future. But time period for this growth is around 10 years.

B.Sc. in chemistry is 100 times better than B.Sc. biotechnology, although biotech has a great market abroad but in our country there is no particular job for this. You can go through biotech in M.Sc. if you want to be a biotechnologist, but I would suggest you not to take biotech.

Dear ,
Yes you can plan for actuarial science with PCM or even commerce stream because math subject has important role in this field, specially stats part.
But for the good opportunities you should have good command over math subject.
Even you can do B.Sc maths (Hons.) and than plan for Actuarial Science exam that will be good combination in terms of strong foundation of math subject.
All the best