India Meteorological Department (IMD) was established in 1875. It is the National Meteorological Service in India and is the principal government agency in all matters relating to Meteorology, Seismology and allied subjects. For administrative control and technical operations, six Regional Meteorological Centres (RMCs) function with their headquarters at Kolkatta, Chennai, Guwahati, Mumbai, Nagpur and New Delhi. Regional Meteorological Centre at Chennai is responsible for the weather related activities of Southern Peninsula comprising of the states of Andhra Pradesh, Karnataka, Kerala, Tamilnadu and the Union Territories of Lakshadweep Islands and Puducherry.