Hello Aspirant.
You can pursue BSc from several colleges or universities and every University has it's own criteria to fulfill.
But the most common thing that each and every college demands is atleast 60% in class 12 with Physics, chemistry, maths/biology as mandatory subjects.
Some college might demand more aggregate but most college demand atleast the above mentioned aggregate.
Best of luck !
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile