Where is the best for chemical engineering, NIT Jaipur, NIT Bhopal, or NIT Calicut?

All the mentioned NITs are among the top engineering institutes in the country. Out of all the NITs in India, the best choice is NIT Rourkela. As some of my friends studied there I might be able to give you some reasons. These are:

• NIT Rourkela is famous for its Chemical Branch. 
• The research culture of the institute is outstanding.
• The institute has been ranked 16th in the NIRF Ranking for Engineering 2020. It is way above all the three institutes mentioned.
• The JEE Main cut-offs are high. So, only the best students get a chance for admission. 
• The college also encourages diversity.

The fee and chemical branch placement details are as follows.

The top recruiters include L&T, Reliance, Tata, P&G, Parle, ACC Cement, Aditya Birla, IOCL, PGCIL, NTPC, GMR Energy, GlaxoSmithKline, and more.

Overall, NIT Rourkela is an excellent choice. After CSE and EC branches, the Chemical branch recorded the highest placements. The return on investment of college is decent. But you should opt for it only if you can deal with and function under strict regulations and laws.