Atmospheric electricity research in Indian subcontinent during solar eclipses

Solar eclipse (SE) gives researchers a unique opportunity to observe and analyze the dynamics of the Earth's space-environment throughout the globe. In India, excellent studies of atmospheric electricity parameters and observations of metrological parameter changes during the past SEs have been made. Various experiments, viz., measurement of surface O₃, NO, NO₂, NH₃ and CO, detection of short-period coronal oscillation, vertical electrical potential gradient, Very Low Frequency (VLF), Point Discharge Current (PDC) measurement, measurement of temperature, relative humidity, wind speed, Ultra Violet (UV) radiation, performed in different places of India during SE periods and the outcome of those investigations are documented in brief in this review.