For other courses, NIT Warangal maybe reccomended. But for mechanical and mining courses, IIT Dhanbad is preferred. It also gives you the IITian tag, which helps you to get directly into short lists of various internships and can directly proceed to the interview. At the same time, someone who graduates from NITs would have to give aptitude tests and then clear an interview.

Also, note IIT Dhanbad has NIRF ranking 11th while NIT Warangal has only 19th.

Good luck ;