My cousin attended both colleges. He left BIT Mesra to join JECRC. Here is his insight for the institutes.

Comparison:

• BIT Mesra has better faculties, better brand name, better opportunities in terms of placements as well as higher studies. But unfortunately, the campus is not that good. There is a lack of cooperation from the university and less crowd.
• In JECRC, you will get a good college experience. After all, all that matters, in the end, is your skills.
• If you don’t have any interest in socializing and want a life with a brand name to carry forward, BIT Jaipur is definitely the better alternative.

For CSE particularly, the preference order should be BIT Jaipur >> JECRC.