Having a few friends who graduated from NITIE, I think I can answer this question.
If you compare NITIE's fee structure among the top b schools of the country, it is still less than most of the institutes apart from the Faculty of Management Studies, New Delhi.
At the same time, the placements are quite good at NITIE. According to the recent placement highlights the average CTC offered at the institute is 20 LPA. So I would not claim that NITIE has the best Return On Investment (ROI) but it surely has a better ROI than most of the b schools.
NITIE has the second-best ROI after the Faculty of Management Studies. So choose accordingly and make a wise decision.