Why are IIT Ropar and IIT Mandi preferred less as compared to PEC, CHANDIGARH?

Is PEC really preferred over IIT’s? I think it’s the other way around. So, here are some reasons why IIT Ropar or IIT Mandi is preferred:

• Peer Group: The students of IIT Ropar and IIT Mandi are the students who have secured under 5k ranks in the JEE Advanced AIR. The peer group in IITs will be better than that of PEC as they have the best students on their campus.
• Faculty: The faculty of IITs are the best and experienced teachers throughout the country. 
• Brand Value: The brand value of IIT is definitely better than that of PEC. It has international recognition. 
• Rank: MHRD has ranked both of the two colleges among the top colleges in India and is therefore considered as the best.
• Placements: The placements are exceptionally well in IITs. For the CSE branch, the average package is about 16 LPA, in electrical it is about 12 LPA and in the core branches like mechanical, it is around 8-9 LPA that is more than the average packages of PEC.

Apart from these factors, the only factor in which PEC campus.