Hey Anupam,

Hope you are doing well!

Well dear,If you don't lock the choices in NEET couselling,then you are free for making any changes or editing it in the future.So,saving the choices instead of locking them is a good option.

Also,it will automatically get locked once the choice filling period expires.

Also,If you want to find all the possible Colleges Under Your NEET score,you ay go on the link of the College Predictor below:

https://medicine.careers360.com/neet-college-predictor

Hope This was helpful!

All the best!

Keep Smiling :)