If you are considering Amity University, Noida for Engineering, it is recommended that you do not enroll there. According to students who completed their bachelor's degree in aerospace engineering from there, it's a pathetic place to study. They claim that the quality of teaching is very poor, research is nil, and fees are too high. They highly recommend that you join KIIT, Bhubaneswar for a B.Tech, rather than Amity University, Noida.
Based on their experience, they believe that anyone who recommends Amity is either lying or trying to get a commission from you. Therefore, it's advised that you look into other options and do your research before making a decision on where to pursue your engineering degree.
Here is a video comparing these top engineering colleges
You should definitely not join Amity University at all. A friend of mine decided to take admission there and is now highly regretting it. As far as fees are concerned, KIIT is a little more expensive as compared to Amity. At KIIT you can expect to pay around INR 4.29 lakhs for the first year whereas, at Amity Noida, you will pay close to INR 3.11 lakhs for the first year.
In my opinion, if you are joining a private university, always look at the placements as this will give you a better idea about the college. In this case, KIIT is better than Amity. Hope this helps.