National Family Health Survey 1992-1993

http://www.dhsprogram.com/pubs/pdf/FRIND1/FRIND1.pdf

National Family Health Survey 1998-1999

http://www.dhsprogram.com/pubs/pdf/FRIND2/FRIND2.pdf

National Family Health Survey 2005-2006

http://dhsprogram.com/pubs/pdf/FRIND3/FRIND3-Vol1andVol2.pdf

National Family Health Survey 2015-2016

http://rchiips.org/nfhs/nfhs4.shtml