Dear Aspirant,

Following is the list of some of the best institutes in the country:-

1. Indian Statistical Institute (Multiple Locations)
2. Indian Institute of Technology (Bombay, Kharagpur, Guwahati)
3. Indian Institute of Science, Bangalore;
4. Indian Institutes of Science Education and Research (Multiple Locations)
5. Institute of Mathematical Sciences, Chennai
6. National Institute of Science Education and Research, Odisha
7. Delhi Technological University (DTU), Delhi
8. University of Delhi, Delhi (Multiple Colleges)
9. Chennai Mathematical Institute, Chennai
10. Tata Institute of Fundamental Research, Mumbai
11. Loyola College, Chennai
12. Ashoka University, Sonepat
13. Christ University, Bangalore
14. Banaras Hindu University, Varanasi
15. Fergusson College, Pune

Hope this helps. Thank you.