1. CRSI- Silver Medal, 2006.
Plenary Speaker, ACS-CSIR
Symposium, OCCB-2006, NCL-Pune, January-2006.
Plenary Speaker, International
Symposium on Organic Chemistry (INSOC-2006), Kottayam, January-2006.
Plenary Speaker, Southern Highlands Conference on Heterocyclic Chemistry, Moss Vale, Australia, September-2005.
Visiting Professor, National
Science Council, Republic of China, Taipei, April-2005.
6. Professor Sukh Dev Endowment Lecture, NCL, Pune, April-2005.
A. V. Rama Rao Foundation
Lecture, JNCASR, Bangalore, March-2005.
Invited speaker ICOS–15,
International Conference on Organic Synthesis, August-2004, Nagoya, Japan.
Invited speaker IUPAC-24th
ISCNP Symposium, New
Invited speaker NOST Symposium-Goa,
Invited speaker- INSA-KOSEF
Symposium, Seoul, S. Korea, August-2003.
Hon. Professor, Dept. of
Environmental Science, Cochin University of Science and Technology, 2002-06.
Invited speaker, 11th
IUPAC Symposium on Organometallic Chemistry directed towards Organic Synthesis (OMCOS11), Taipei, Taiwan, July 22-27, 2001.
Invited speaker, 18th
International Conference on Heterocyclic Chemistry, Yokohama, Japan, July 29 – Aug.3, 2001.
Visiting Professor, University of Pernambuco, Recife, Brazil (sponsored by Brazilian National Research Council),
Invited Speaker, First International
Conference on Multicomponent Reactions, Munich, Germany, October-2000.
Fellow, Indian Academy of Sciences, 1999.
Invited speaker, ISHC-17th
International Conference on Heterocyclic Chemistry, Vienna, August-1999.
INSA – DFG Visiting
Scientist, Germany, 1998.
Member, Editorial Board,
Indian Journal of Chemistry, 1998-2004.
Prof. Devaprabhakara Memorial
Oration, I.I.Sc., Bangalore, India, 1998.
Prof. R. H. Sahasrabudhey
Lecture, University of Nagpur, 1989.
Outstanding Scientist Award,
American Cyanamid Co., 1981.
Visiting Scientist, Columbia
Mahatma Gandhi University, Kottayam - Mar. 1995, Jan. 1996, January- 2003
Smith Kline Beecham Pharmaceuticals, Philadelphia, U.S.A, September-1996
Wyeth-Ayerst Research Center, Princeton, U.S.A, September-1996
University of Konstanz, Konstanz, Germany, May 1998, June-2005
University of Heidelberg, Heidelberg, Germany, May-1998, July-2005
University of Wurzburg, Wurzburg, Germany, May-1998
University of Gottingen, Gottingen, Germany, May-1998
University of Freiburg, Germany – May 1998, July-2005
Imperial College of Science, Technology and Medicine, London, May-1999
University of Cambridge, Cambridge, May-1999
University of Tokyo, Tokyo, October-1999
University of Kyoto, Kyoto, October-1999
University of Osaka, Osaka, October-1999
University of Wuppertal, Wuppertal, Germany, October-2000
Glaxo Smith Kline, Raleigh, U.S.A, October-2000
Phoenix Pharmaceuticals, Raleigh, U.S.A, October-2000
Univ. of Nagoya, Japan, July-2001
Schering Plough Research Institute, U. S. A, October-2002
Wyeth Research Laboratories, U. S. A, October-2002.
University of Paris Curie Institute, France, May-2002
University of Rennes, Rennes, France, May-2002
University of Hannover, Germany, September-2002
Technical University of Clausthal, Germany September-2002
Max-Planck Institute, Dortmund, Germany, September-2002
Pfizer Symposium Speaker. I.
I. Sc., Bangalore, 2002
University of Greifswald, Germany, June-2004
University of Regensburg, Germany, June-2004
University of Dresden, Germany, June-2004
Hümboldt University, Berlin, Germany, June-2004
Technical University of Braunschweig, Germany, June-2004
University of Munich, Germany, June-2005
University of Köln, Germany, July-2005
University of Karlsruhe, Germany, July-2005
University of Siegen, Germany, July-2005
Technical University of Aachen, Germany, July-2005
University of Saarbruecken, Germany, July-2005
University of Queensland, Brisbane, Australia, August-2005
South Wales, Sydney , Australia, August-2005
University of Sydney, Australia, September-2005
Australian National University, Canberra, September-2005
University of Melbourne, Melbourne, September-2005
University of Rostock, Germany, July-2006
University of Dortmund, Germany, July-2006
University of Muenster, Germany, July-2006
University of Bonn, Germany, July-2006
University of Mainz, Germany, July-2006
University of Pennsylvania, U.S.A, October-2006
Research, U.S.A, October-2006
Max-Planck-Institut für Kohlenforschung, Germany, May-2007
Technical University of Berlin, Germany, May-2007
University of Leipzig, Germany, May-2007
Referee for Professional Journals
1. Angewandte Chemie International Edition
American Chemical Society
of Organic Chemistry