Well, both the colleges are in different states and both have their own set of reports, some good some bad. Though from an infrastructure point of view, NIT Jamshedpur is small and cozy whereas NIT Durgapur is quite beautiful and flourished in about 187 acres of land.
Similarly, it goes for NIT Jamshedpur.
Both the campus have good campus life and environment. But better contact someone who studies there and judge the authenticity and then choose between the two and definitely consider placement, faculty, and research before opting for either of them. The campus life at NIT Jamshedpur is quite good and you are not going to regret joining this institute.