Hello Suhail, 

JAC Delhi conducts the counselling for DTU, NSIT ,IIIT-D and IGDTUW every year.

No for PWD there is not only one cut off for all branches cutoff depends upon different categories in the PWD  as well like you're from Delhi or Outsider Delhi or you either belongs to General, SC, ST or OBC . 

For different category and sub- category you have different cutoffs and it changes as the subsequent rounds of counselling passes by. It also depends how many candidates has applied within the PWD category for different branches sometimes no one chooses the branch. For further details you can go to 

https://www.google.com/amp/s/engineering.careers360.com/articles/jac-delhi/amp

And to know what Branch you'll get depends totally upon you which branch you choose depending upon the rank once the counselling starts and you'll get the information through your account on the JAC counselling.

Hope it will help.