As both the colleges are good but according to rating and reviews JMI is bit better than NIT Patna.

So to know about the same in detail, you can go through below links -

National Institute of Technology, Patna

Jamia Millia Islamia, New Delhi

Hope this helps!!!

NIT Patna

Admissions Courses & Fees Cutoff Placements Reviews

Shortlist

Brochure

JMI New Delhi

Admissions Courses & Fees Cutoff Placements Reviews

Shortlist

Brochure