Source - RAJYA SABHA SESSION - 266 UNSTARRED QUESTION No 2708. ANSWERED ON, 18th December 2024. Data Figures are in Percentage. Data for (1992-93) NFHS-1 Survay year Under 4 years. Data for (1998-99) NFHS-2 Survay year Under 3 years. Data for (1998-99) NFHS-3 (2005-6), NFHS-4 (2015-16) and NFHS-5 (2019-21) Survay year Under 5 years.