| Member | Indian Delegation 4th Session of the Adhoc Group of State Parties to the Biological Weapons Convention, Geneva, July 16-27, 1996 |
| Member | Indian Delegation 5th Session of the Adhoc Group of State Parties to the Biological Weapons Convention, Geneva, Sept. 16-27, 1996 |
| Member | Indian Delegation 6th Session of the Adhoc Group of State Parties to the Biological Weapons Convention, Geneva, March 12-21, 1997 |
| Member | Indian Delegation 7th Session of the Adhoc Group of State Parties to the Biological Weapons Convention, Geneva, July 14-23, 1997 |
| Member | Indian Delegation 10th Session of the Adhoc Group of State Parties to the Biological Weapons Convention, Geneva, March 9-13, 1998 |
| Member | Indian Delegation 15th Session of the Adhoc Group of State Parties to the Biological Weapons Convention, Geneva, July 9-16, 1999 |
| Member | Indian Delegation 18th Session of the Ad hoc Group of the State Parties to the Convention of the Prohibition of Bacteriological (Biological) and Toxin Weapons at Geneva, Switzerland, Jan 27-28, 2000 |
| Member | Indian Delegation 20h Session of the Ad hoc Group of the State Parties to the Convention of the Prohibition of Bacteriological (Biological) and Toxin Weapons at Geneva, Switzerland, July 24- Aug.2, 2000 |
| Member | Indian Delegation Fifth Review Conference on Convention of the Prohibition of Bacteriological (Biological) and Toxin Weapons at Geneva, Switzerland, Nov. 26-30,2001 |
| Member | Participated in the Fifth Review Conference of the Biotolical and Toxin Weapons Convention (BTWC) held in Geneva from 19 November to 7 December 2001 |
| Member | Participated in the Fifth Review Conference of the Biotolical and Toxin Weapons Convention (BTWC) held in Geneva from 11-22 November 2002 |
| Member | Indian Delegation To participate in the First meeting of Experts of Convention of the Prohibition of Bacteriological (Biological) and Toxin Weapons at Geneva, Switzerland, August 18-22, 2003 |
| Member | Indian Delegation to participate in the Annual Meeting of State Parties to the Convention of the Prohibition of Bacteriological (Biological) and Toxin Weapons at Geneva, Switzerland, Nov.12-14,2003 |
| Member | Indian Delegation Meeting of experts on Biological and Toxin Weapons Convention at Geneva, Switzerland, June 13-20, 2005 |
| Others | |
| Res. Assoc. | Clinical Research Centre, Massachusetts Institute of Technology, USA, May –Sept. 1974 |
| Res. Fellow | NORAD Research Fellow, University of Bergen, Norway, Jan.-Mar. 1981 |
| Commonwealth Fellow | London School of Hygiene and Tropical Medicine, London, Jan. -July1984 |
| Res. Fellow | NORAD Research Fellow, University of Bergen, Norway, Sept.-Dec.1988 |
| Sr. Res. Fellow | University of Bergen, Norway, Mar.-July1988 |
| Member | Indo-EC S&T Working Group Meeting, Joint Commission Session at Brussels and Visit to EC Laboratories, May 27-June 2, 1990 |
| Member | 4th Meeting on the Joint Working Group on Indo-US Collaborative Research programme on Contraceptive Development and Research in immunology held at Washington, USA, Sept. 17-19, 1992 |
| Member | Participated in the Review Meeting of the Indo-US Programme on Contraceptive Development and Research in Immunology held at Washington, USA, April 19-25, 1993 |
| Fellowship | Science Management Awardee of the Indo-US Programme on Contraceptive Development and Research in Immunology at National Institute of Health, Bethesda, Washington, USA, June12-Sept.9,1993 |
| Member | Indian Delegation of Experts in Biotechnology for visit to Shanghai, China, May 16-20, 1994 |
| Leader | Indian Delegation for Workshop on ASEAN-India Cooperation in Biotechnology held at Bangkok, Thailand, June 26-28, 1996 |
| Member | Indian Delegation to Pursue Areas of Collaborative Research in Biotechnology with Biotechnology and Biological Science Research Councils, UK, April 22-24, 1998 |
| Member | Indian Delegation for Fifth ASEAN Science and Technology Week at Hanoi, Vietnam, Oct. 11-15, 1998 |
| Member | Joint Working Group Meeting of the Indo-US Programme on Contraceptive and Reproductive Health Research at Washington, USA, April 12-15, 1999 |
| Member | Indian Delegation Led by Secretary, DBT for Indo-Srilanka Cooperation in Biotechnology at Colombo, Srilanka, May 17-19, 1999 |
| Member | Indian Delegation for Third Meeting of Indo-German Committee on Science and Technology at Berlin, Germany, Jan. 24-26, 2000 |
| Leader | Presented Seminar on “Biotechnological and Pharmaceutical Industries in India” organised by Indian Embassy in Brussels, Belgium, September 21, 2000. |
| Leader | Discussion on Indo-German Collaborative Programme on Biotechnology for agreement for cooperation with Institute for Biotechnology, Juelich, Germany, September 22, 2000 |
| Member | Indian Delegation led by Secretary, DBT for signing of agreement between India and Germany for collaboration in the fields of biotechnology, Germany, February 14-16,2001 |
| Member | Joint Working Group Meeting of the Indo-US Programme on Contraceptive and Reproductive Health Research at Washington, USA, April 23- 30, 2001 |
| Member | 8th Session of the Board of Governors of the International Centre for Genetic Engineering & Biotechnology, Trieste, Italy, Nov.7-9, 2001 |
| Leader | Leader of three member delegation to Khartoum, Sudan for Indo-Sudan Cooperation in Biotechnology, May 20-23, 2002 |
| Member | Indian delegation led by Secretary, DBT to Copenhagen, Denmark for Indo- Danish Collaboration in Biotechnology, Sept. 9-12, 2002 |
| Member | Fifth Joint Working Group Meeting of the Indo-US Programme on Contraceptive and Reproductive Health Research at Washington, USA, Oct. 28-31, 2002 |
| Member | Indian delegation led by Secretary, DBT to Participate in the Consultative Meeting with UNESCO Officials and Review Meeting with CNRS, June 9-12, 2003 |
| Member | Indian Delegation to participate in 2nd Round of negotiations between India and Singapore for Comprehensive Economic Cooperation Agreement (CECA) at Singapore, July 1-3, 2003 |
| Member | Indian Delegation to participate in the Joint Indo-German Science and Technology Committee meeting at Berlin, Sept. 22-24, 2003 |
| Member | 10th Session of the Board of Governors of the International Centre for Genetic Engineering & Biotechnology, Trieste, Italy, Nov.10-11, 2003 |
| Member | Indian Delegation for Meeting of the Global Biotechnology Forum at Concepsion, Chile, March 2-5, 2004 |
| Member | Meeting of the SAARC Working Group on Biotechnology at Kathmandu, Nepal, April 27-28, 2004 |
| Member | Meeting of the Liaison Officers of the International Centre for Genetic Engineering and Biotechnology, Trieste, Italy, June 4-6, 2004 |
| Member | Indian Delegation for Indo-Israel Joint Committee of Scientists at Tel Aviv, Israel, July 26-30, 2004 |
| Leader | Biotechnology Mission organized by Confederation of Indian Industry at Israel, Oct.18-21, 2004 |
| Leader | Conference on New Business Opportunities in Indian Biotechnology organized by Swiss Organization for Facilitating Investments at Zurich, Oct. 22, 2004 |
| Leader | Indian Delegation for Participation in International Workshop “Stem Cells-Perspective Trends” and Bilateral discussions with Ukraine. Kyiv, Ukraine, April 20-22, 2005 |
| Member | Indian Delegation for Meeting of Indo – Brazil Joint Council on Science and Technology at Rio de Jenerio, Brazil, June 22-23, 2005 |
| Member | Joint Working Group meeting on INDO-US programme on Contraception and Reproductive Health Research at Washington, USA, Aug 22-24, 2005. |
| Member | Joint Working Group meeting of INDO-US programme on Vaccine Action Programme at Washington, USA, Aug 25-26, 2005 |
| Member | Indo-Danish Joint Steering Group at Copenhagen, Sep 18-21, 2005 |
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