Hello ,

As your query is you have been alloted the seat at NIT Delhi in the first round of counselling procedure. I would like to tell you that in the end of 7th round of counselling yes even you can go for the choice upgradation.

Somehow, there are some cases when where after choice upgradation you may end of getting better seat then you have opted in earlier rounds of counselling . I would like to tell you that yes you can go but remember to keep your seat on flair option so that of these idea doesn't show with your expectations then at least you will have a seat left with you to go with . 

Further, f you have any other query regarding the same you can let me know in the comment section below.

I hope your query is solved.

Thank you.