Sikhs 14 History 12 Politics and government 11 Agriculture 5 History and criticism 5 Economic aspects 4 Music 4 more ... Green Revolution 3 Sikh art 3 Sikhism 3 Social aspects 3 Social conditions 3 Social life and customs 3 Villages 3 Agricultural colonies 2 Agricultural ecology 2 Autonomy and independence movements 2 Birth control 2 Economic conditions 2 Emigration and immigration 2 Ethnic identity 2 Ethnic relations 2 Green revolution 2 Hindus 2 Human rights 2 Irrigation farming 2 Land settlement 2 Manners and customs 2 Muslims 2 Panjabis (South Asian people) 2 less ...