He has worked with institutes of national/international repute in various capacities such as Lecturer, Faculty of Law, University of Jabalpur, Jabalpur (1962-70); Senior Lecturer, Faculty of Law, University of Dar- es- Salaam, Tanzania, (Africa) (1981-83); Professor of Law, Lucknow University (1991-1994); Visiting Professor, School of Law, City University, Hong Kong, (Sept-Dec. 2005); Professor of Law, Campus Law Centre, Faculty of Law, University of Delhi (India), till superannuation in 2005 and Human Rights Chair Professorship of the National Human Rights Commission, New Delhi (2007-2008).