i want to join cavendish college as i m doing now two yrs full time government diploma

HI Dimple, you might face trouble visa wise and part time job wise if you go to a college and for a Diploma. I would suggest you to go to a University and for a UG Degree than a Diploma so that you can easily work part time. Let me know the subject so that I can suggest you suitable Universities.

According to latest UK visa rules, studying in colleges have many restrictions. Better to do in Universties