Selected List of Plenary and Invited Talks :

[1] Plenary Talk: WATOC, Cape Town, South Africa, 2005.
[2] Plenary Lecture: 40th IUPAC Congress, Beijing, China, August, 2005
[3] Invited talk: 2nd Asia Pacific Conference on Theoretical and Computational Chemistry, Thailand, Bangkok, 2005.
[4] R. P. Mitra Memorial Lecture, Delhi University, 2005.
[5] Keynote Address: XVth National Conference on Atomic and Molecular Physics, PRL, Ahmedabad, 2004.
[6] Key Note Address: Physical Chemistry Division, ACS Meeting, Philadelphia, USA, August-2004
[7] Kapuy Memorial Lecture, Eötvos University, Budapest, 2004.
[8] Plenary talk in European Theoretical Chemistry meeting on Electron Correlation, France, 2004.
[9] Invited talk: Theory and Applications of Computational Chemistry, Korea, 2004.
[10] Shing-Da Endowment Lecture, Beijing University, 2003.
[11] INSA Special Lecture on "Aspects of Reductionism in Chemistry", 2003.
[12] Panelist in the Discussion Session on Future Directions in Quantum Chemistry, Meeting of the International Academy of Quantum Molecular Science, Menton, 2002.
[13] Plenary Talk, European Theoretical and Computational Chemistry Meeting, Barcelona, July, 2002
[14] Plenary talk : The 125th Anniversary Meeting of the American Chemical Society, Symposium on Accurate Description of Low-Lying Electronic States}, San Diego, CA, April 01 -- April 05, 2001.
[15] Plenary talk : The Xth International Congress of Quantum Chemistry, Menton, France, 2000.
[16] Plenary talk : The Recent Progress in Quantum Many-Body Theories, Bonn, Germany, 2000.
[17] Summary talk : The Millennium Meeting on Theoretical Chemistry, Okazaki, Japan, 1999.
[18] Plenary talk : The Millennium Meeting on Theoretical Chemistry, Okazaki, Japan, 1999.
[19] Invited talk : Indo-French Workshop on Probing Fundamental Interactions with Laser, Bangalore, 1998.
[20] Invited talk : 50 years of electron correlation, Satellite meeting on 9th International Conference on Quantum Chemistry, Florida, 1997.
[21] Plenary Lecture : Nobel foundation meeting on Recent Trends in Atomic Physics, Sweden, 1996.
[22] Plenary Lecture : International Symposium on Multi-configuration Perturbation Theory, Spain, 1996.
[23] Jagdish Shankar INSA endowment lecture, 1994.
[24] Invited Talk: Workshop on Nonperturbative Methods in Quantum Field Theory to Chemistry, Bonn, Germany, 1994.
[25] Invited Talk: 8th International Meeting on Recent Progress in Many Body Theories, Graz, Austria, 1994.
[26] Invited Talk : Conference on Electron Correlation Theory, Satellite Meeting to 8th International Quantum Chemistry Congress, Czech Republic, 1994.
[27] Invited Talk : Nagoya Symposium on Reaction Theory, Nagoya, Japan, 1993
[28] Invited Talk : Recent Methodological Developments in Quantum Chemistry, Satellite Meeting to 7th. International Congress in Quantum Chemistry, France, 1991.
[29] Plenary Lecture : Harvard Conference on Coupled Cluster Theory at the Interface of Chemistry and Physics, Harvard, 1990.
[30] Invited Talk : European Conference in Theoretical Chemistry, Poland, 1989.
[31] Invited Talk : Danish Chemical Society Meeting on Theoretical Chemistry, Odense, Denmark, 1988.
[32] Invited Talk : International Workshop on Condensed Matter Theories, Mexico, 1988.
[33] Plenary Lecture : International Conference on Many Body Methods in Quantum Chemistry, Tel Aviv, Israel, 1988.
[34] Plenary Lecture : International Conference on Condensed Matter Theories, Oulu, Finland, 1987.
[35] Plenary Lecture : International Sanibel Symposium, Florida, 1986