Hello Aspirant,

No you cannot do this, because status retention form is filled to confirm the seat and as soon as you get an upgraded seat in round 3rd or mop-up round then the seat allotted to you earlier in round 2nd would automatically get cancelled after which you cannot join it. Because if we go through general norms and guidelines laid for NEET UG counselling either for state quota or for All India Quota, then according to them, if you were allotted a seat in round 1st or 2nd and you apply for upgradation of the seat then in round 2nd or 3rd respectively and an upgraded seat would be allotted to you then the seat allotted to you in round 1st or just previous one will automatically be cancelled and allotted to any other candidate so if this is the case then you cannot retain the seat back allotted to you in round 1st. But if you did not get an upgraded seat in round 3rd then definitely you can retain back the seat that has been allotted to you in round 2nd.

You can also visit our article for regular updates and complete information regarding NEET 2021 counselling :-

Maharashtra NEET Counselling 2021 - Round 2 Ayush & Nursing Result (Released), Seat Matrix (careers360.com)

I hope this information helps you.

Good Luck!!