HIMALAYAN rivers of glacial origin, hence a greater possibility of floods EVEN during summers due to the overflow of glacial lakes.The main reason for more earthquakes in the Himalayan zone is due to proneness to more plate movements and due to the instability of the Himalayan Mountains. In central and western India, the droughts are more frequent because monsoons do not occur in these areas frequently and the intensity of MONSOON winds becomes weak as they reach these areas.The Tsunami has caused devastation on the South East Coast of the country.One such tsunami in the Indian Ocean in DECEMBER 2004, led to massive destruction along the coastline of Tamil NADU, Kerala, Andhra Pradesh, Puducherry, and Andaman and Nicobar islands of India.