Hi Aspirant

Your question is incomplete as you have not specified some of the details so I cannot comprehend what information you are exactly trying to look for.

You have not specified the specific NIT in which you are taking admission, so nothing can be said with absolute certainty about the exact date of reporting.

But you can check the particular NIT's website to get the schedule of reporting and admission.

Incase of any other doubts you can drop your doubt in the comments section below.

Hope this helps and All the best.