Ramya Tripathi as you haven't appeared for CMAT exam so it won't be possible to get admission in GH Patel postgraduate institute of business management because it only accepts CMAT marks for counselling and final admission. 

As you haven't given CMAT exam so either you can wait for next session, give CMAT exam and then apply for the college or you can think of going for management quota i.e. donations. In this, you will need to pay extra fees for your admission.  None of among us will be able to tell you about the exact amount. For this management quota, you will need to directly go to college and talk to administrative about the whole procedure.