Thanks for response and pls tell me is this course good means pls tell me about it's career opportunities in India

Yes, b.sc (biology) is a good option.If you do b.sc then you may also compete for various competition and if you go for higher studies like m.sc or PhD then you may also work as a professor in any prestigious government or private university and also you may work as a scientist.In this your salary get increases as you gain experience.

Thanks for motivation

One last thing
Pls tell me is there any entrance exam for adm in bsc biology in DU???

Hi,
You need to apply online to their official website and there you need to mention your class 12 marks and the courses your interested in to take admission and they had as a result they give a cut off percentage in the basis of your 12 marks and if you are selected then you need to go college with your documents for verification.
And remember there is no entrance examination for b.sc course.

Thank you giving your precious time