Main Collaborators
Prof. Paul J. Wiita Georgia State Univerity, Atlanta, USA
Profs. R. Bachev, A. Strigachev & E. Semkov, Institute of Astronomy, Sofia, Bulgaria
Profs. M. F. Gu & Z. Zhang, Shanghai Astronomical Observatory, Shanghai, China
Prof. M. Uemura and his group, Hiroshima Astrophysical Science Center, Hiroshima University, Japan
Prof. J. H. Fan, Director, Center for Astrophyics, Guangzhou University, Guangzhou, China
Profs. M. F. Aller &  H. D.  Aller,  Astronomy  Department,  University  of  Michigan,  USA
Prof. M. Bottcher, Center for Space Research, North-West University, South Africa
Profs. A. E. Volvach &  L. N.  Volvach, Cremia Astrophysical Observatory, Cremia
Prof. A. Lahteenmaki  &  Prof.  M.  Tornikoski,  Metsahovi  Radio  Observatory,  Finland
Prof. O. M. Kurtanidge and his group, Abastumani Observatory, Georgia
Profs. G. Damljanovic & O. Vince, Astronomical Observatory, Serbia 
Prof. I. E. Papdakis, University of Crete, Greece
Prof. V. M. Larionov and his group, Astronomical Institute, St. Petersburg State University, Russia
Prof. Luis C. Ho, Director, Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, china 
Dr. B. Villarroel, ETH, Zurich, Switzerland 
There are several other collaborators in India and abroad.