Hello, 

As per your requirement, i would say that as you have got your allotment- letter so have to do the admission process in yoir respective college to get your seat. 

You have to check the college rules you will take admission into whether they take semester or yearly or monthly fees depending on which you need to pay your fee in the college during admission process itseld. You can't do it later. You also have to give the security fee of your college itself during the admission process only. Without the fees they won't do your registration and your admission will be pending. Its advisable to pay the fees asked to do sl frlm the college.

But if there any issue regarding the fees payment, you must talk to the respective administration department of the colllege they would clear your doubt out.

Good luck