PARR-I is a research reactor located at the Pakistan Institute of Nuclear Science and Technology (PINSTECH). It was started in 1965 at 5MW and later was upgraded to 10MW in 2000. Since criticality, PARR-I has rendered invaluable services in the training of manpower, production of radioisotopes and as a source of neutrons and gamma radiation for basic and applied research. PIEAS students use this important facility of performing experiments and doing research in nuclear engineering.