1973 November Indian Institute of Technology, Kanpur

1974 March Indian Institute of Technology, Bombay

1975 July Rensselaer Polytechnic Institute, Troy, NY, USA

1976 June Indian Institute of Technology, Bombay

1977 March Vanderbilt University, Nashville, TN, USA

1977 September Rotary Club, Keystone Heights, Fl, USA

1977 November Luncheon speech entitled, "Mechanism Designer and the Law", delivered at the Fifth Applied Mechanisms Conference, Oklahoma City, OK, USA

1980 May Tata Engineering & Locomotive Co. Ltd , Pune

1981 September Government Engineering College, Rewa

1982 March Tata Consultancy Services, Bombay

1982 March Bharat Heavy Electricals Ltd, Bhopal

1982 December University of Wisconsin at Milwaukee, WI, USA

1982 December University of Minnesota, Minneapolis, MN, USA

1982 December University of Florida, Gainesville, Fl, USA

1983 November Wipro Information Technology Ltd, Bangalore

1984 June Indian Space Research Organization, Bangalore

1984 July Institution of Engineers (India), Kanpur

1984 August Indian Institute of Management, Ahmedabad

1984 August AIEI Workshop on Advanced Manufacturing Technology at I I T Kanpur

1984 December Telco Technical Society, Jamshedpur

1985 January Computer Society of India, Allahabad

1985 February Massachusetts Institute of Technology, Cambridge, MA, USA

1985 February University of Rochester, Rochester, NY, USA

1985 February Ohio State University, Columbus, OH, USA

1985 April Defence Research & Development Laboratory, Hyderabad

1986 December Computer Society of India, Jamshedpur

1988 April Tata Research, Development & Design Center, Pune

1988 May Indian Railways National Workshop, Calcutta

1988 June Institute of Systems Studies & Analysis, New Delhi

1988 October Virginia Tech, Blacksburg, VA, USA

1991 May Executive Development Programme, Telco, TMTC, Pune

1992 May Executive Development Programme, Telco, TMTC, Pune

1994 May Executive Development Programme, Telco, TMTC, Pune

1995 June Executive Development Programme, Telco, TMTC, Pune

1993 February Invited Talk, International Conferecnce on Computer Graphics, ICCG-93, Bombay

1993 November Don State Technical University, Rostov Von Don, Russia

1995 July Invited Talk, Aeronautical Development Agency, Bangalore

1995 October Asian Productivity Organization, HKPC, Hong Kong

1995 October Annual Convention of Production Engineering, Institution of Engineers, IIT Kanpur

1996 January Keynote Speaker, Annual Convention, Institution of Engineers, MNREC Allahabad

1996 December Institute of Engineering & Technology, Lucknow

1996 December Motilal Nehru Regional Engineering College, Allahabad

1997 March India - Japan Workshop, Tokyo University, Tokyo, Japan