Hi aspirant, since you want to have comparison of IERT, Allahabad and FGIT Raebareli so let me tell you that both the institutions are run by the state  government. Both are decent colleges in which earlier the admission is been granted by UPSEE now they use to take admission in behalf of JEE Mains. Also IERT also have it's own exam for admission.

Here is the link with the help of which you can compare both the colleges;

https://www.careers360.com/compare-colleges Hope this will help you.

Thank You.