Hello Jyoti, 

The thing is that the form filled by you is for admission in bunch of colleges as it is joint admission process. To get a fixed centre like you mentioned Kalina University and if they are asking for your choice of colleges then colleges will be alloted to you according to the priority order filled by you. You can either only fill Kalina University or just add this at the top most priority in the colleges and keep other names for backup in case you need it. 

Hope it helped you..