Would it be good to do management study from IGNTU?

Yes, this institute is good. They provide good facilities and faculty is also helpful. You can do management study from IGNTU, you will get a good career ahead.

If you are looking for placements, the reviews of IGNTU are not so satisfactory as only around 20% of students are placed. The remaining are on the lookout for jobs by themselves. If you are planning to just take up a degree, it is a good option, with even the course fees being less.