class (5–7%) and the uneducated labourers (over 80%). Economic class and job functions were also aligned with the ethnic origins of immigrants. For example, Sri Lankan Tamils and Malayalees formed the core of the English educated upper middle class. Mercantile families tended to be Sindhi, Gujarati, and Tamil Muslim. South Indian upper caste Hindus tended to perform traditional skilled jobs, such as moneylenders (Chettiars) and priests (Brahmins). Sikhs were often policemen or private security guards. Most of these migrants were voluntary migrants who entered and left Singapore freely on their own resources. Unskilled coolies tended to be landless Tamil peasants from the Shudra caste as well as Adi Dravidas or 'Untouchables'. These were often indentured labourers who were brought through various labour recruitment systems to work on rubber plantations in Malaya. Many later came to work in Singapore once free of their bonds. Another group which was less than free was the military. The first Indians in Singapore were 120 sepoys in the Bengal Native Infantry and a 'bazaar contingent' of washermen, servants and others who came with Stamford Raffles on his first visit in 1819. Throughout the colonial period, military personnel came from all over India. Most returned home after their service without settling in Singapore. Finally, there were the convicts. In the 19th century, the British shipped Indian convicts to Singapore to relieve overcrowded Indian jails. These men (and some women) were used as labour to build public buildings and roads in Singapore. Like the sepoys, they came from all parts of India. While some returned to India, several settled in Singapore after serving their sentences. Social reform movements From the 19th century, Hindu reform movements emerged in India as part of a broader cultural modernisation. These movements sought to promote what they saw as a more authentic form of Hinduism while addressing social abuses, such as the Hindu caste system. These movements spread to overseas Indian communities, including Singapore. Groups like the Ramakrishna Mission, Arya Samaj and Sree Narayana Mission were active conduits of this reform movement. Traditional religious practices, especially among lower caste Hindus, centred around various rural folk traditions, esoteric rituals and superstitions. In contrast, the new movement appealed to better educated urban Hindus, by conducting religious education classes for children and adults, and interpreting the values, concepts and principals behind the religion for lay people. These groups also encouraged a more direct relationship with