Dear,

The seats will be allotted to the candidates as per their NLUs’ choice-preference and based on their rank. In case any seat gets vacant, the preferred NLU on the higher preference of candidate’s choice will be allotted to them automatically. Even after the last list, there are vacant seats then nlu will put it on their website and let you know about it. They will specify the procedure on their site itself. So be in touch with the site.

Hope this helps!