Depending upon the given parameters, both the institutes stand very different to each other. Here is a discussion on the same. 

Study Environment: [Winning Institute – IIIT Allahabad]

• IIIT Allahabad provides an efficient study environment with world-class facilities. They have one of the best course structures for IT. 
• The coding culture of the college is unmatched. 
• They have air-conditioned labs and a central library with a repository of more than 50000 books concerning myriad disciplines of study. 
• The library can accommodate up to 150 students at a time.

As far as MNNIT is concerned, the academic infrastructure and study environment is not at par with IIIT-A as in NITs the campus life is much more engaging.

Placements:

• According to the placement statistics of 2020, the average CTC offered at IIIT Allahabad is 20.83 LPA.
• At MNNIT the average CTC usually ranges between 15-18 LPA. All the stats are given on their official website as well, so you can cross-check.

Government Jobs :

• In both the colleges, the number of government companies visiting the campus is extremely low. 
• If you are looking for government jobs, the best way is to prepare for GATE. Because most of the PSUs recruit the new graduates on the basis of their GATE score.

Hostels and Mess:

• At IIIT Allahabad, you will get a sharing room with 2-3 people. There are a total of 3 girls and 5 boys hostels. Each room at the hostel is equipped with a table, chair, bed, cupboard, LAN port, and fans. All the hostels are equipped with wi-fi signals. The internet facility is really good. Mess food is also ok. 
• MNNIT also has a good hostel and mess facilities but there is a restriction on internet usage which should not be there. Because being a student, you will need the internet facility throughout.

Overall, if you are willing to study computers, then IIIT Allahabad is a place for you. Constant support from seniors, efficient college facilities will help to bring out the best in you.