I admire Professor Khawaja's understanding about General Relativity and Theoretical Physics in particular and Physics, as a natural philosophy, in general. I haven't seen many people like him having great enthusiastic characteristic of giving his students a deep understanding of nature and reality.

He is one of the best theoretical physicists in Pakistan.

He taught linear algebra during my BS. He is superb.

I learned a lot during studied classical in the 5th semester and quantum mechanics in the 6th semester from him. He is a wonderful teacher.

He is best teacher of Quantum, Classical Mechanics and quantum field theories