THE DECISION WAS APPRECITED. IT WILL GIVE GREAT RELIEF TO NON GATE MTECH HOLDERS WHO ARE IN WAY OF PHD ADMISSION.MORE THAN THE SCORE MTECH GPS BE GIVEN FOR PREFERENCE COR SELECTION.

Assuming asking for P.hd admission in IIST, The admission is not through GATE Entrance test for GATE. You can check the complete Ph.d. admission procedure of IIST with the given below link.

https://www.iist.ac.in/admissions/phd/regular

Good Luck!