Life member of the Materials Research Society of India
Life member of the Chemical Research Society of India
Member of the Indian Association of solid state chemists and allied scientists
Convenor, National symposium of Nanostructured Materials (NSNM), Dec 2002
(along with Dr. B.R. Mehta)
Co-Convenor, Modern Trends in inorganic chemistry (MTIC-XI), Dec 2005
Joint Convenor, International Conference on Nano science and Technology , March 2006
Member, Nanotechnology thrust area at IIT Delhi
Vice- Chairman IISc- Alumni Association Delhi Chapter
Member Board of Studies, JNU(SPS)
Executive Committee Member, Society of Material Chemistry, BARC, Mumbai
Associate Editor of Bulletin of Materials Science
Member, Editorial Board, Ind. J. Chem. A
Member, Editorial Board, J. Chem. Sci.
Council Member of Chemical Research Society of India (CRSI) 2011-2014
Member of special committee of School of Environmental Science, JNU
Convenor, Review and Coordination committee meeting of Nano Mission (DST)
Feb 25-27 , 2011.
Convenor, Indo - US meeting on "Advanced Functional Materials" , Manali,
2-7 June,2011.
Convenor, Science Academies meeting on Nanoscience & Nanotechnology , Mody Inst of Technology & Science
Member Local organizing committee, Indo-US meeting on self – assembly from theory to applications, IIT Delhi, Dec 12-14, 2011
Convenor, Science Academies meeting on Nanoscience & Nanotechnology Science Academies, NIT Warangal, Dec 23-24, 2011