Hi Hrishi!

Yes you are right in your prospect. I hope you have filled the form of taking admission in colleges. There are various colleges and if a student applies for admission he/she is asked to select their preference of college in the form. The admission is given by merit in exam and the choice first goes to student with high score in merit. This way he/she gets admission in the choice of college filled in form. This procedure is followed for remaining students also. There is always chance of admission if seat is vacant.

I hope you get it. Best of luck!