why is climate different in different parts of india
Climatic regions of India India has a large variation in climate from region to region, due to its vast size. India experiences climate from four major climate groups. These can be further subdivided into seven climatic types. For ecological regions, see Ecoregions of India, for Regions see List of regions of India.
Climate of Tamil Nadu The state has three distinct periods of rainfall: advance rainfall ; rainfall from the tropical cyclones emerging in the neighbourhood of the Andaman islands during the Retreat of Monsoons(October–November); and the North East monsoon during the months of October–December, with dominant northeast monsoon winds from the western disturbances emerging over the Mediterranean Sea. The dry season is from February to early June.