The Total Fertility Rate (TFR) of India as per recent NFHS-5 (2019-21) data is 2.0. The Net Reproduction Rate (NRR) required to achieve replacement level fertility is:
- A NRR = 2.1
- B NRR = 0.5
- C NRR = 1.0 ✓
- D NRR = 1.5
Correct answer: C. NRR = 1.0
Explanation
The Net Reproduction Rate (NRR) represents the average number of daughters a woman would have over her lifetime who survive to reproductive age, accounting for mortality. An NRR of exactly 1.0 signifies replacement-level fertility, meaning each generation exactly replaces itself. An NRR < 1 indicates a declining population (below replacement), while NRR > 1 indicates a growing population.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
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