Hi Varun

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.

Keep checking on the websites of all the NLUs, each NLU will release it’s cut off list for vacant seats on its website after CLAT closes its admission, most of the time people are not even aware of this, if possible keep checking everyday at least.

Hope  it helps!!