Since I did not do in BITS Pilani, my answer may not qualify for first hand experience. But based on my knowledge picked from the others’ experience, the answer is:
YES.
Of course, it depends on your preparation. When I say yes, I mean that just an average preparation is not good enough – but developing a very good depth of the concepts will be highly required. So, it is not just spending time solving problems, but really getting deep into the subject.
Prepare well. BITS P is yours.
All the best.