The 513.7-million-worker Indian labour force is the world's second-largest, as of 2016. The service sector makes up 55.6% of GDP, the industrial sector 26.3% and the agricultural sector 18.1%. India's foreign exchange remittances of US$70 billion in 2014, the largest in the world, were contributed to its economy by 25 million Indians working in foreign countries. Major agricultural products include: rice, wheat, oilseed, cotton, jute, tea, sugarcane, and potatoes. Major industries include: textiles, telecommunications, chemicals, pharmaceuticals, biotechnology, food processing, steel, transport equipment, cement, mining, petroleum, machinery, and software. In 2006, the share of external trade in India's GDP stood at 24%, up from 6% in 1985. In 2008, India's share of world trade was 1.68%; In 2011, India was the world's tenth-largest importer and the nineteenth-largest exporter. Major exports include: petroleum products, textile goods, jewellery, software, engineering goods, chemicals, and manufactured leather goods. Major imports include: crude oil, machinery, gems, fertiliser, and chemicals. Between 2001 and 2011, the contribution of petrochemical and engineering goods to total exports grew from 14% to 42%. India was the world's second largest textile exporter after China in the 2013 calendar year.
India accounts for the bulk of the Indian subcontinent, lying atop the Indian tectonic plate, a part of the Indo-Australian Plate. India's defining geological processes began 75 million years ago when the Indian Plate, then part of the southern supercontinent Gondwana, began a north-eastward drift caused by seafloor spreading to its south-west, and later, south and south-east. Simultaneously, the vast Tethyan oceanic crust, to its northeast, began to subduct under the Eurasian Plate. These dual processes, driven by convection in the Earth's mantle, both created the Indian Ocean and caused the Indian continental crust eventually to under-thrust Eurasia and to uplift the Himalayas. Immediately south of the emerging Himalayas, plate movement created a vast trough that rapidly filled with river-borne sediment and now constitutes the Indo-Gangetic Plain. Cut off from the plain by the ancient Aravalli Range lies the Thar Desert.
More InfoAccording to the International Monetary Fund (IMF), the Indian economy in 2019 was nominally worth $2.9 trillion; it is the fifth-largest economy by market exchange rates, and is around $11 trillion, the third-largest by purchasing power parity, or PPP. With its average annual GDP growth rate of 5.8% over the past two decades, and reaching 6.1% during 2011–2012, India is one of the world's fastest-growing economies. However, the country ranks 139th in the world in nominal GDP per capita and 118th in GDP per capita at PPP. Until 1991, all Indian governments followed protectionist policies that were influenced by socialist economics. Widespread state intervention and regulation largely walled the economy off from the outside world. An acute balance of payments crisis in 1991 forced the nation to liberalise its economy; since then it has moved slowly towards a free-market system by emphasising both foreign trade and direct investment inflows. India has been a member of WTO since 1 January 1995.
More InfoMany Indian species have descended from those of Gondwana, the southern supercontinent from which India separated more than 100 million years ago. India's subsequent collision with Eurasia set off a mass exchange of species. However, volcanism and climatic changes later caused the extinction of many endemic Indian forms. Still later, mammals entered India from Asia through two zoogeographical passes flanking the Himalayas. This had the effect of lowering endemism among India's mammals, which stands at 12.6%, contrasting with 45.8% among reptiles and 55.8% among amphibians. Notable endemics are the vulnerable hooded leaf monkey and the threatened Beddom's toad of the Western Ghats.
More InfoDuring the period 2000–500 BCE, many regions of the subcontinent transitioned from the Chalcolithic cultures to the Iron Age ones. The Vedas, the oldest scriptures associated with Hinduism, were composed during this period, and historians have analysed these to posit a Vedic culture in the Punjab region and the upper Gangetic Plain. Most historians also consider this period to have encompassed several waves of Indo-Aryan migration into the subcontinent from the north-west. The caste system, which created a hierarchy of priests, warriors, and free peasants, but which excluded indigenous peoples by labelling their occupations impure, arose during this period. On the Deccan Plateau, archaeological evidence from this period suggests the existence of a chiefdom stage of political organisation. In South India, a progression to sedentary life is indicated by the large number of megalithic monuments dating from this period, as well as by nearby traces of agriculture, irrigation tanks, and craft traditions.
More InfoThe President of India is the supreme commander of the nation's armed forces; with 1.395 million active troops, they compose the world's second-largest military. It comprises the Indian Army, the Indian Navy, the Indian Air Force, and the Indian Coast Guard. The official Indian defence budget for 2011 was US$36.03 billion, or 1.83% of GDP. For the fiscal year spanning 2012–2013, US$40.44 billion was budgeted. According to a 2008 Stockholm International Peace Research Institute (SIPRI) report, India's annual military expenditure in terms of purchasing power stood at US$72.7 billion. In 2011, the annual defence budget increased by 11.6%, although this does not include funds that reach the military through other branches of government. As of 2012, India is the world's largest arms importer; between 2007 and 2011, it accounted for 10% of funds spent on international arms purchases. Much of the military expenditure was focused on defence against Pakistan and countering growing Chinese influence in the Indian Ocean. In May 2017, the Indian Space Research Organisation launched the South Asia Satellite, a gift from India to its neighbouring SAARC countries. In October 2018, India signed a US$5.43 billion (over ₹400 billion) agreement with Russia to procure four S-400 Triumf surface-to-air missile defence systems, Russia's most advanced long-range missile defence system.
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