India comprises the bulk of the Indian subcontinent and lies atop the minor Indian tectonic plate, which in turn belongs to the Indo-Australian Plate. India Geography sketches the spectrum of topographical features, climatic conditions based on India location, disaster prone regions as well as flora and fauna, which stretch along different India States. he subcontinent's subsequent collision with, and subduction under, the Eurasian Plate bore aloft the planet's highest mountains, the Himalayas. They abut India in the north and the north-east.[100] In the former seabed immediately south of the emerging Himalayas, plate movement created a vast trough that has gradually filled with river-borne sediment;[101] it now forms the Indo-Gangetic Plain.[102] To the west lies the Thar Desert, which is cut off by the Aravalli Range. In India winter season is from November to mid-March and India summer from mid-April to June. Intensity and amount of Monsoon varies from region to region. Indian Meteorological Department regularly does the India weather forecast with the help of images from satellites like INSAT, Meteosat, World (Intellicast), etc. India's coast is 7,517 kilometres (4,700 mi) long; of this distance, 5,423 kilometres (3,400 mi) belong to peninsular India and 2,094 kilometres (1,300 mi) to the Andaman, Nicobar, and Lakshadweep Islands.[107] According to the Indian naval hydrographic charts, the mainland coast consists of the following: 43% sandy beaches, 11% rocky coast including cliffs, and 46% mudflats or marshy coast.