Indian Centre for Space Physics Kolkata India;
Indian Centre for Space Physics Kolkata India;
Indian Centre for Space Physics Kolkata India;
Indian Centre for Space Physics Kolkata India;
Institute of Space Science National Central University Chinese Taipei;
Hayakawa Institute of Seismo Electromagnetics Co. Ltd. UEC Alliance Center Chofu Tokyo Japan;
Physical Research Laboratory Navrangpura Ahmedabad India;
Indian Centre for Space Physics Kolkata India;
Indian Centre for Space Physics Kolkata India;
Very Low Frequency; Wave Propagation; Earthquake Precursory; Atmospheric Gravity Wave; Geomagnetic Strom; SABER/TIMED;