Position of West Bengal in India, Administrative divisions, Changes in administrative boundaries, Physical Aspects, Relief and drainage, Normal monthly and annual rainfall, soils, Demographic Structure and Trends, Disribution of population, Density, Inter-censal, Growth of population, Fertility, Ever married women and total children born to them, Sex and structure, sex ratio, change in sex ratio, rural, Migration, Economic Aspects, Population employed in primary Activities, Socio-cultural Aspects, Religion, Literacy and education, Housing, Health.