Hello student

hope you are doing well and safe. With reference to your query,  I would glad inform you that different course have different set of counselling at different time . Moreover , I am very sorry to say you that once counselling get begins it is not possible to change anything in any round as it would be highly unfair for the other students. I would advise you to work hard and appear for next attempt

Hope you found this answer informative. Best wishes for your future