Hello, 

As per your requirement, i would say that as per your category . mentioned which is ph category with additional pairment which is is disability criteria, so i would say that for such cases, there are specific reservation of seats provided during thr counseling which means they have a lower cut off and less cut off marks. 

But there is no extra time provided during the exam for such category. They have to appear for the exam in the same time like other students but in a different class where they will be provided the required help or assistance.

Good luck