Hii,i am here to help you according to your query.You should join KIET as it better than JSS in all aspects. I myself is a student of Mechanical Engg from JSS Noida. there are many issues in the college which will frustrate you. KIET on the other hand thinks for their students. Some faculty in JSS Mechanical Department are worthless and will mentally torture you. so it's better to join KIET.

Hope,this information helpful for you.Goodluck.