Hii,

There is no fresh registration of candidates and choice submission in 2nd round of counseling. Choices of main counseling (submitted before first round allotment) will be considered in this round of allotment.

To know more about counseling please check out the link mentioned below

https://medicine.careers360.com/articles/neet-counselling-faqs

To get the complete list of top colleges you have chances to get admission you can use the below college predictor tool

https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

To open Copy and paste the link in the new tab

It gives you a detailed analysis of the Top college you can apply for which helps you to make correct choise  and decision while during the counseling.

You can also check cutoff predictor tool from the below link

https://medicine.careers360.com/articles/neet-cut-off

Hope this will help you,

All the very best !!