The birth rate of Bihar (per 1000 ) is 30.9 in 2002. Total fertility rate (TFR) measures the number of children a woman is likely to give birth. TFR for women aged 15−49 years for Bihar was 3.4 children, which is the highest in India. TFR for India was 2.18 according to NFHS- 4 ( 2015−16 ).