Atmospheric electric potential gradient at Kolkata during solar eclipse of 22 July 2009
Some studies of solar flare effects on the propagation of sferics and a transmitted signal
Characteristic feature studies of integrated field intensity of sferics at North-East India
A study on heating of the lower ionosphere during lightning
Analyses of Schumann resonance spectra from Kolkata and their possible interpretations
Studies on sferics over Kolkata in relation to rainy and winter seasons