Both BITS and IITs are the best institutes in India, and they provide effective class and placement support to intelligent and aspiring candidates. But VIT is not up to the mark and cannot be compared with the other two institutes.
IIT has twenty-three campuses in India, while BITS only has three campuses, which is a major difference. This is one of the main factors that make IITs superior to BITS.
Apart from this, they gave quality education and a resourceful atmosphere to the students. Both of them have well-experienced scholars and rich alumni networks.
You can choose either IIT or BITS based on your preferences