Hello Aspirant,

Since your question is not very clear because how have you missed the choices if you got an allotment, so it is quite difficult to answer your query accurately. I might not be getting your question so can you please elaborate it a bit so that I can guide you more accurately.

See if you got seat in round 1st of NEET UG counselling then you can apply for upgradation of that seat in round 2nd and once you get an upgraded seat in round 2nd then the seat allotted to you earlier would be cancelled automatically and in case if you do not get an upgraded seat in round 2nd then you can retain the seat allotted to you in round 1st. For AIQ counselling the round 2 process has been started on February 16th 2021 and as you are already registered candidate so there is no need to re-register but yes if you want to change your preferences then you can do so using RESET button from the link given below :-

https://mcc.nic.in/WebinfoUG/Page/Page?PageId=1&LangId=P

Also note that the counselling process varies from state to state and since you have not mentioned whether you are asking about state quota counselling or AIQ counselling so I have provided you common information as per the information brochure of MCC. For accurate information please help us with the name of authority of counselling through which which you are getting allotment.

I hope this information helps you.

Good Luck!!