Hello Aspirant,
I see you are a science enthusiast and having biology as a subject is no problem rather I would consider this a plus point. You should do your graduation then the roads towards ISRO are open. I suggest you to give KVPY examination for going into good institutes like IISc where you have a lot of scope for research. You can give KVPY in class 11, 12 and after doing 12th.
The reason I am considering biology a plus point for you is that you will also have a biology section in KYPY examination.
All the best little budding scientist.....
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile