Hey !

IIIT , Manipur is at a distance of around 2500 km from vijayawada. As manipur is n the north eastern side and vijayawada is in the southern side , there is a lot distance to travel. And obviously , for 2500 km  , it is not convenient to go by  bus or car. You can prefer going by train or if you can afford   then the quickesf way is to go by flight . If you do nit want to gef tired after a tiredsome journey , and yiu want to enjoy your college life with a fresh start , prefer flight.

Hope it helps!