Reproduction and maintenance of members like food shelter clothing.
Regulation of sexual behaviour and social norms related to it.
Socialization of children about beliefs customs and traditions. Vehicle of culture transmission.
Status transmission. Children take up the social economic and class identity of their family.
economic activity. Both production and consumption by pooling of economic resources. Eg. Joint families in India
Social emotional support. Affection and love.
Inter- institutional linkage. Family links other institutions like religion, political, economic institutions. Like priest family produces priests.
But recently the institution of family is changing because of modernization Technology new economy feminism urbanisation industrialisation and so on. Facts about changes in Indian family can be added from JP Sharma study.