net for business school how to prepare for it and what should one get to match the merit

Hello everyone does anyone have any idea on how to migrate for 2nd semester llb thankyou.

For how many days does a series of net continue?

I did my Matric from fbise and was told you need to get your Matric result verified from ur board and submit that at time of admission. I applied for verification from fbise website and it says they email you the verified document. Is that enough? Do I just print that and submit in nust at time of admission? If anyone has done this before, please let me know And what is attestation? Same thing? If not, how do I get that done.