1. Department of Physical Sciences; Indian Institute of Science Education and Research-Kolkata; Nadia India
2. Department of Condensed Matter Physics and Materials Science; S. N. Bose National Centre for Basic Sciences; Kolkata India
3. Department of Physics; Indian Institute of Technology Kharagpur; Kharagpur India
4. Department of Geology and Geophysics; Indian Institute of Technology Kharagpur; Kharagpur India