Invited talks in International Conferences

1. Relaxation Phenomena, at the International Conference on Mössbauer Spectroscopy, Jaipur, India (1981).
2. Relaxation in Mössbauer Spectra, at the Royal Society Discussion Group, Oxford University, U.K. (1984).
3. Role of Friction in Tunneling Motion, at the VIIth International Conference on Hyperfine Interaction, Bangalore, India (1986).
4. Time Windows of Various Nuclear Methods for the Observation of Spin Dynamical Processes, at the International Conference on Nuclear Methods in Magnetism, Munich, Germany (1988).
5. Biased Two-level Systems, at the Adriatico Conference on Quantum Fluctuations in Mesoscopic and Macroscopic Systems, at Trieste, Italy (1990).
6. Dynamics of an Impurity Spin Coupled to a Dissipative Bath, in a meeting on Rate Processes in Dissipative Systems – Fifty Years after Kramers, held in Tutzing, Germany (1990).
7. Kinetics of Ordering, at STATPHYS 18, Berlin, Germany (1992).
8. Orientational Order and Viscoelasticity in Supercooled Liquids, at a meeting on Relaxation in Complex Systems, Alicante, Spain (1993).
9. Relaxation in a Model Quantum Glass, in Satellite to STATPHYS 20: on Applications of Field Theory to Statistical Physics, Bonn, Germany (1998).
10. SRPAC Study of Glass Transition, in the Indo-US meeting on Synchrotron-Radiation-based Physics, Argonne National Laboratory, Argonne, Illinois, May (2003).

In addition to the international conferences listed above Dattagupta has given invited talks in several places, including Argonne National Lab, Brookhaven National Lab, Carnegie-Mellon University, Cavendish Lab of Cambridge University, Forschungs Zentrum Jülich, Free University of Berlin, International Centre for Theoretical Physics at Trieste, Institute Jozeph Stefan in Ljubljana, Institute Laue-Langevin in Grenobole, Jagellonian University, Krakow, Max Planck Institute of Stuttgart, Michigan State University, Northwestern University of Illinois, Pennsylvania State University, Pierre Curie University at Paris, Technical University of Chemnitz, Technical University of Munich, Theoretical Physics Institute of Beijing, University of California, Los Angeles, University of California at Riverside, University of Düsseldorf, University of Essen, University of Freiburg, University of Munich, Universtity of Oxford, University of Paris at Gif Sur Yvette, Warsaw University, Warsaw

  Other Professional Services

1. Foreign Secretary (1998 – 2000) and Vice President (2001) of the Indian National Science Academy, New Delhi.
2. Council Member, Indian National Science Academy, New Delhi (1998 – 2001).
3. Convener, Sectional Committee on Physical Sciences of the Indian Academy of Sciences, Bangalore (1999-2003).
4. Council Member and Vice President, Indian Academy of Sciences (2004- 2009).
5. Member, Scrutinee Committee for Fellowship in Physical Sciences, National Academy of Sciences, Allahabad (1999 - )
6. Council Member, National Academy of Sciences, Allahabad (2001- 2007).
7. Member, Commission C 10: Structure and Dynamics of Condensed Matter, International Union of Pure and Applied Physics (2000 – 2005).
8. Member, Membership Committee in the field of Physics & Astronomy for the Third World Academy of Sciences (TWAS) (2004-2006).
9. Convener, Membership Committee in Physics, Academy of Sciences for the Developing World (TWAS), (2005-2007).
10. Chairman, National Committee of the Indian National Science Academy for International Council of Science (ICSU) (2005 - 2007).
11. Chairman, CSIR Committee for SRF, RA’s, etc. (2003 -)
12. Member, CSIR Emeritus Scientists Committee (2002-2004).
13. Member, Research Council of the National Physical Laboratory (2001-2006).
14. Member, Reserach Council of CSIR, RAB (2007-2009).
15. Vice Chair, STATPHYS 22, International Conference on Statistical Physics, Bangalore - (July 2004).
16. Convener, Experts' Committee, Indian Institute for Science Education and Research (2005-2006).
17. Member, Council, West Bengal University of Technology (2004 - 2005).
18. Member, Executive Council, Burdwan University (2005 - ).
19. Chairman, Board of Governors, National Institute of Technical Teachers' Training & Research (NITTTR), Kolkata (2007 - 2011).
20. Referee for Physical Review Letters, Physical Review A, B and E, Europhys. Letters, Solid State Communications and J. Physics C (Condensed Matter Physics).