Dr. Khan began his career of teaching in 1988 as lecturer in a college of University of Delhi. He later taught at Delhi School of Economics, University of Delhi. He has several research papers and books to his credit.
Dr. Khan has been teaching General Studies since February 1992 to IAS aspirants and is very proud of the fact that almost every State and Union Territory in India has some civil servants who personally associate with him.
Dr Khan on Answer Writing
Dr Khan on Essay Writing
My Notes By Dr Khan