Hi,

All of them are average engineering colleges in Andhra Pradesh. They all have good infrastructure but studies and placements are not very impressive. However, with determination and self study, your result would be good.

JNTUK Narasaraopet is a newly established one and hence there are no proven statistics on its performance. So it would be better to avoid. 

Among the other two, JNUTUK Pulivendula has better faculty and lesser fees. Placements are moderate, only IT companies visit. So may prefer that over GMRIT. 

All the best!