Hello STudent

You want to cancell your admission after 3months .It is possible though some procedure of norms to be maintained by the candidate.

The student has to apply the authority of the college

with requisite document and showing the proof of  reason for leaving the college or cancelling is admission in that college.

Authority of the college give the permission to the candidate for withdrawing his candidacy or cancelling his admission. The candidate has to apply for cancellation of admission within the 30 days of the last date of admission then candidate will get back 50 percent of admission fees diposited by the student.

If the cancellation date  is more than 30 days of the last date of admission then the candidate will get back only  caution money  or some amount of money which was deposited other than admission fee immediately.

Hope hope this helps.