Original sentence: After his Master's degree, Hafeez Qureshi came back to Pakistan where he joined PINSTECH and was put incharge on Mechanical Engineering Department (MED) At PINSTECH, he also specialized in nuclear physics and become a distinguished professor of  mechanical engineering.Sc in Mechanical Engineering, in which he specialized in aerodynamics and aeronautics, from the same University
Edited sentence: After his Master's degree, Hafeez Qureshi came back to Pakistan where he joined PINSTECH and was put incharge on Mechanical Engineering Department (MED) At PINSTECH, he also specialized in nuclear physics and become a distinguished professor of mechanical engineering.Sc in mechanical engineering from the same University