During counselling you will be only allotted seats from what you have chosen during the Choice locking window. You will be alloted seats from this based on your merit and preference. There is no way that seats and preferences that you haven't selected will be an option. But if you do not want to take up that seat, you can always participate in 2nd round. If there is a Choice locking window for Round 2, you may change your options. For more information, please read our article: https://medicine.careers360.com/articles/odisha-pg-medical-admission