Hi Aspirant 

Yes you can change your college easily but to change university the process would be lengthy.You need to take permission from your college and university in the form of NOC and migration .You need to find out that whether your new college or university will accept students of your university or not,If not you won't be able to change ,and if they allows ofcourse you can change .

You need to find it out whether new university takes admission of other university or not and what is their criteria and admission process.The college and university can provide good knowledge in this regard.

All the best.