- The National Commission for Women (NCW) is a statutory body in India that works to protect and promote the interests of women. - Option A is a key function: The NCW investigates and examines matters relating to the safeguards provided for women under the Constitution and other laws. - Option B is a function/activity: The NCW can support or fund litigation involving issues affecting a significant number of women or having policy implications. - Option D is a function: The NCW participates and advises on the planning process of socio-economic development of women. - Option C, "To provide gainful employment to women especially from the weaker sections of the society," is NOT a primary function of the NCW. Providing employment is typically the responsibility of government ministries and departments running specific employment and livelihood schemes, or skill development programs. The NCW's role is advisory, investigative, and recommendatory regarding women's rights and legal safeguards, not direct implementation of employment generation programs.