Without second thoughts, IIEST is better than all the colleges you mentioned. The institutes that are better than IIEST are the top 7 IITs, BITS Pilani, IISc.
The leading factor of IIEST that sets it apart from other colleges is its extensive research strategies. Some have been highlighted below:
Developed India's First Smart Grid
Developed Solar Rickshaw for Howrah Municipal Corporation
CEGESS centre at IIEST is among the Best in India in areas of clean energy and sensors systems.
IIEST has collaborations with University of Queensland, University of Hiroshima, University of South Wales, Hokkaido University, Zurich University among others
Other amazing facts include:
Research Projects: Rs. 47 Crores
Consultancy Projects: Rs. 13 Crore
Publications : 2000
Citations : 5000
All this has been achieved by only 220 faculties in less than 3 years.
If IIEST is worthy of comparison to any of the colleges you have mentioned then it is NIT Jalandhar. The academic excellence is very similar. But other colleges don’t even stand in the race to compare.