Both college is good and have good position in AKTU.
in Lucknow region PSIT is top college and in NCR region, galgotia also good college in private college of AKTU.
Based on fee structure, PSIT is best. Because Galgotia fees is high.
Based on location, Galgotia college is based because of Delhi.
If you are from Kanpur then you join PSIT.
Both are nearly same level college.