Hello House.mail.cye,

Well, you haven't specified the couselling you are appearing for... But, as a general Case, Most of Counselling have it that means If you opt for upgradation then it will search for it but your previous seat will remain secured for you...and if you don't get any upgradation then that previous seat will be locked/freezed...

Next time provide more details to get a personalized better answer of your query...

Hope this helps, and feel free to ask any further query...