* 2018 Elected Foreign Member: Chemical Sciences, Academia Europaea (MAE)
* 2015 Honorary Fellowship, JNCASR Bangalore India
* 2015 Elected Fellow, The American Association for Advancement of Science
* 2013 Honorary Fellow, Trinity College Cambridge UK
* 2009 International Review UK Chemistry Research Panel Chair
* 2008 Elected Fellow, The Chemical Research Society of India (CRSI)
* 2008 Fellow, The Mongolian National Academy of Sciences
* 2008 BESAC Sub-committee Member 
* 2006 Elected Honorary Fellow, The Indian Academy of Sciences (IAS)
* 2006 Elected Honorary Member, The Materials Research Society of India (MRSI)
* 2004 Elected Fellow, The World Academy of Sciences (TWAS)
* 2003 Elected Fellow, The Royal Society of Chemistry UK (FRSC)
* 2003 Elected Fellow, The Institute of Physics, UK
* 2003 Elected Fellow, The Royal Society of London (FRS)
* 2003 Elected Member, The American Academy of Arts and Sciences
* 2002 International Review UK Chemical Sciences Panel Member
* 2001-2003 NSF Blue Ribbon Panel on Cyberinfrastructure Panel Member
* 1997 Honorary Fellow Sidney Sussex College, University of Cambridge UK
* 1991 Elected Fellow, The American Physical Society
* 1989 Guggenheim Fellow, University of Florence
* 1985 Fellow Commoner, Trinity College Cambridge UK
* 1984 Elected Fellow, The Royal Society of Canada (FRSC)
* 1979 Elected Fellow, The Chemical Institute of Canada
* 1970 IBM World Trade Fellow, San Jose, CA