Is it possible that court can allow me to write my exams as exams will be over by then ?
Should I change my advocate as I am not at all satisfied with his service ?
You can file an urgent petition on the subject seeking relief urgently owing to the examinations going on, you may change your advocate if he is not trust worthy.
Will the court hear before 4 July if I change my advocate ?
Yes, you can change the advocate by obtaining NOC from him now also.
How much time it will take if a approach a consumer forum for refund of my fees incase college dont allow me to write my exams.
The time taken by consumer case for disposal cannot be predicted, you have to follow it scrupulously to get an expeditious disposal.