Is it right decision to join in amaravaty campus or in Chennai?
The decision is totally up to you I mean you need to decide what is more important to you I mean if you are choosing Amaravati campus for some reason then you must have reasons like staying close to your home place or some other works that you might be interested in doing so you don't need to take those things into account and if you are worried about anything else suggest the facilities offered by the institution you could check those in the link given below for the college compare of careers 360.
https://www.careers360.com/compare-colleges