city was 1023, and the child sex ratio was 957. Tirunelveli had a literacy rate of 91 percent, with male literacy 95 percent and female literacy 87 percent. A total of 42,756 of the city's population was under age six. As per the religious census of 2011, Tirunelveli had 69.0% Hindus, 20.02% Muslims, 10.59% Christians, 0.01% Sikhs, 0.01% Buddhists, 0.02% Jains and 0.35% following other religions. The city covers an area of . The population density of the city in the 2001 census was 3,781 persons per square kilometre, compared with 2,218 persons per square kilometre in 1971. Hindus form the majority of the urban population, followed by Muslims and Christians. Tamil is the main language spoken in the city, but the use of English is relatively common; English is the medium of instruction in most educational institutions and offices in the service sector. The Tamil dialect spoken in this region is distinct, and is widely spoken throughout Tamil Nadu. Economy Inscriptions from the eighth to the 14th centuries (during the rule of the Pandyas, Cholas and later Tenkasi Pandyas) indicate the growth of Tirunelveli as a centre of economic growth which developed around the Nellaiappar temple. The drier parts of the province also flourished during the rule of the Vijayanagara kings. From 1550 until the early modern era, migration to the city from other parts of the state was common and the urban regions became hubs of manufacturing and commerce. Tirunelveli was a strategic point, connecting the eastern and western parts of the peninsula, as well as a trading centre. Records of sea and overland trade between 1700 and 1850 indicate close trading connections with Sri Lanka and Kerala. During the 1840s, cotton produced in the region was in demand for British mills. The chief exports during British rule were cotton, jaggery, chillies, tobacco, palmyra fibre, salt, dried saltwater fish and cattle. Occupations in Tirunelveli include service-sector activities such as administration, agricultural trading, tourism, banking, agro-machinery, cement manufacturing, information technology and educational services. In 1991, the Tirunelveli region ranked second in the number of women workers. Service sectors such as tourism have developed, due to a growth in religious tourism. Tirunelveli has beedi and cement factories, tobacco companies, workshops for steel-based products and mills for cotton textiles, spinning and weaving; there are also small-scale industries, such as tanneries and brick kilns. The agricultural areas, hand-woven clothes and household industries