Official estimates of life expectancy at birth for India and its states, presented as abridged life tables, are prepared by:

• A National Family Health Survey (NFHS), conducted by IIPS Mumbai
• B World Bank, using United Nations World Population Prospects projections
• C Central Bureau of Health Intelligence through its annual health statistics publication
• D Office of the Registrar General of India, based on Sample Registration System data ✓

Explanation

India publishes official abridged life tables and life expectancy figures through the Office of the Registrar General of India, derived from age-specific death rates generated by the Sample Registration System. NFHS provides many health indicators but does not produce the official state-level life tables, and CBHI compiles statistics from routine reporting systems rather than generating life tables. The World Bank and UN publish modelled international estimates, but these are not the authoritative national series used in Indian planning documents.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

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