Weather in the tropical region is characterized by mesoscale organization of clouds. Tropical convection occurs on various spatial and temporal scales. So far, no comprehensive observational and modeling campaign on severe thunderstorm has been conducted over Indian region. Realizing the importance of improved understanding and prediction of these weather events, an effort has been made to study the structure and evolution of thunderstorms. Time and height variation of the radar reflectivity and vertical velocity has been used to classify various forms of convective clouds such as single...