Dear student.

Greetings.

You can select you preference of states and cities in JEE main application form, not the preference of examination centres. There is 90% chance that you will get your preferred city as your examination centre.

Thank you. All the best.

This will depnd on total submission yet and how is demand for each application centre. 

Based on preference of nearest centre you must have selected but it all depends on how soon each centre is filled up and according youmay or maynot get preference centre.