Chennai, the capital city of Tamil Nadu is sited on the Coromandel Coast of the Bay of Bengal. It has played a very crucial role in the traditional, historical and academic growth of the country, representing the different elements of the highest variety of the Dravidian civilization. Today, Chennai, the capital city is the 4th largest city of India and is also the leading commercial centre of South India.
The credit of the booming economy of the city goes to the leading industries including automobile, software services, petrochemicals, financial services, textiles and hardware manufacturing. Also, Chennai, being an important metropolitan city is very well-connected to all the major cities of India as well as with the countries overseas. And, it is also considered as the cultural hub of South India which is famous for its affluent heritage in classical dance, music, architecture, sculpture, crafts, etc.
Chennai is located on the south–eastern coast of India in the north–eastern part of Tamil Nadu on a flat coastal plain known as the Eastern Coastal Plains. Its average elevation is around 6.7 metres (22 ft), and its highest point is 60 m (200 ft). Chennai is 2,184 kilometres (1,357 mi) south of Delhi, 1,337 kilometres (831 mi) southeast of Mumbai, and 345 kilometres (214 mi) east of Bangalore by road. Some areas of the city have the problem of excess iron content in groundwater.
Chennai has a tropical wet and dry climate (Köppen: Aw). The city lies on the thermal equator and is also on the coast, which prevents extreme variation in seasonal temperature. The hottest part of the year is late May to early June, known regionally as Agni Nakshatram ("fire star") or as Kathiri Veyyil, with maximum temperatures around 35–40 °C (95–104 °F). The coolest part of the year is January, with minimum temperatures around 19–25 °C (66–77 °F). The lowest recorded temperature was 13.9 °C (57.0 °F) on 11 December 1895 and 29 January 1905. The highest recorded temperature was 45 °C (113 °F) on 31 May 2003. The average annual rainfall is about 140 cm (55 in).
Indian Rupees (INR) is the official currency of India. On arrival at the airport in India, foreigners may exchange currency at the currency exchange booths located inside the airport. These booths are usually available before you leave the customs area. If you walk out of the airport you may not be allowed back in to exchange foreign currency.