The paper describes some results of a climatic study of the characteristics and decennial frequencies of droughts at a few selected stations in the three dry climatic zones—arid, semi-arid and dry sub-humid—of India. The classification of the climates was done according to the 1955 water balance scheme of Thornthwaite, after a careful mapping of the moisture indices for all the climatological observatories in India. Four stations in the arid, six from the semi-arid and from the dry sub-humid zones were selected for the analytical study of droughts.