Polygyny or the practice of having more than one wife is legal in India only for Muslims, but National Family Health Survey (NFHS) data shows it is almost as prevalent in other communities, though on the decline in all.
India's efforts to promote family planning have produced a significant increase in the couple protection rate (CPR) which has increased by about 33 percent during the last 22 years-from 10.4 percent in 1970 to 43.5 in 1992.