 in 1994, he was appointed as the Dean of the Faculty of Law, and Head of the Department of Law, University of Delhi, positions that he retained till 1997.In 1980–1982 and again in 1985 he was Alexander von Humboldt Fellow at the University of Heidelberg.The result of this stay was not only his works on German administrative law, and on minorities, but also a long and fruitful association between Indian and German legal academia.