Hello Ramya,

In the choice filling process of the counseling procedure, there would be a freedom to select any college in any order the student desired. As of now, there is no limit as to how many college names can be added or chosen in the procedure. Therefore, it is safer to choose most options of colleges desired. Also, this takes place only for once, you cannot add any more options in the later rounds. I suggest you do it wisely and with preparation. 

All the best