Question: Which Indian politician served as a Chairperson for the National Advisory Council and is also a widow of a former Prime Minister?

<P0-S0> A. K. Shiva Kumar (29 June 1956), is a development economist and professor. <P0-S1>  He teaches various courses at Harvard University, Indian School of Business and Young India Fellowship. <P0-S2>  He currently serves as the Director of the International Centre for Human Development (IC4HD), New Delhi. <P0-S3>  The IC4HD is a constituent of the United Nations and along with support from the Ministry of Human Resource Development (India). <P0-S4>  In addition to serving as an advisor to UNICEF – India, he was a member of India's National Advisory Council constituted by the chairperson Sonia Gandhi. <P0-S5>  The council was set up in June 2004 to oversee the implementation of India's National Common Minimum Programme. <SEP> <P1-S0> Sonia Gandhi (   ; born Edvige Antonia Albina Màino 9 December 1946) is an Italian-born Indian politician, who has served as President of the Indian National Congress party since 1998. <P1-S1>  She is the widow of former Prime Minister of India, Rajiv Gandhi who belonged to the Nehru–Gandhi family. <SEP> <P2-S0> The National Advisory Council (NAC) of India was an advisory body set up by the first United Progressive Alliance (UPA) government to advise the Prime Minister of India. <P2-S1>  Sonia Gandhi served as its Chairperson for much of the tenure of the UPA. <SEP> <P3-S0> Swaziland is an absolute monarchy with constitutional provisions and Swazi law and Custom. <P3-S1>  The head of state is the king or "Ngwenyama" (lit. <P3-S2>  "Lion"), currently King Mswati III, who ascended to the throne in 1986 after the death of his father King Sobhuza II in 1982 and a period of regency. <P3-S3>  According to the constitution of Swaziland, the King and Ingwenyama is a symbol of unity and the eternity of the Swazi nation. <P3-S4>  By tradition, the king reigns along with his mother or a ritual substitute, the "Ndlovukati" (lit. <P3-S5>  "She-Elephant"). <P3-S6>  The former was viewed as the administrative head of state and the latter as a spiritual and national head of state, with real power counterbalancing that of the king, but during the long reign of Sobhuza II the role of the "Ndlovukati" became more symbolic. <P3-S7>  The king appoints the prime minister from the legislature and also appoints a minority of legislators to both chambers of Libandla (parliament), with help from an advisory council. <P3-S8>  The king is allowed by the constitution to appoint some members to parliament for special interests. <P3-S9>  These special interests are citizens who might have been left out by the electorate during the course of elections or did not enter as candidates. <P3-S10>  This is done to balance views in parliament. <P3-S11>  Special interests could be people of gender, race, disability, business community, civic society, scholars, chiefs and so on. <P3-S12>  The Senate consists of 30 members, of which some are appointed by the king on recommendation of the advisory council and others elected by the lower house. <P3-S13>  The House of Assembly has 65 seats, 55 of which are occupied by elected representatives from the 55 constituencies around the country, 10 appointed by the king on recommendation of the advisory council and the attorney general is the ex-officio member. <P3-S14>  Elections are held every five years.