Question: Which Indian politician served as a Chairperson for the National Advisory Council and is also a widow of a former Prime Minister?
Context: Sujatha Ramdorai is a professor of mathematics and Canada Research Chair at University of British Columbia, Canada.  Previously a professor at Tata Institute of Fundamental Research,, Ramdorai is an algebraic number theorist known for her work on Iwasawa theory.  She is the first Indian to win the prestigious ICTP Ramanujan Prize in 2006 and also a winner of the Shanti Swarup Bhatnagar Award, the highest honour in scientific fields by Indian Government in 2004.  She was a member of the National Knowledge Commission from 2007 to 2009.  She is at present a member of the Prime Minister’s Scientific Advisory Council from 2009 onwards and also a member of the National Innovation Council.  She is also on the advisory board of Gonit Sora.  She holds an adjunct professorship position at Indian Institute of Science Education and Research, Pune. A. K. Shiva Kumar (29 June 1956), is a development economist and professor.  He teaches various courses at Harvard University, Indian School of Business and Young India Fellowship.  He currently serves as the Director of the International Centre for Human Development (IC4HD), New Delhi.  The IC4HD is a constituent of the United Nations and along with support from the Ministry of Human Resource Development (India).  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.  The council was set up in June 2004 to oversee the implementation of India's National Common Minimum Programme. Indira Priyadarshini Gandhi (; Nehru; 19 November 1917 – 31 October 1984) was an Indian politician and central figure of the Indian National Congress party.  She was the first and to date the only female Prime Minister of India.  Indira Gandhi belonged to the Nehru-Gandhi political family and was the daughter of India's first Prime Minister, Jawaharlal Nehru.  Despite her surname "Gandhi", she is not related to the family of Mahatma Gandhi.  She served as Prime Minister from 1966 to 1977 and then again from 1980 until her assassination in 1984, making her the second-longest-serving Prime Minister of India after her father. Economic Advisory Council to the Prime Minister (PMEAC) is a non-constitutional, non-permanent and independent body constituted to give economic advice to the Government of India, specifically the Prime Minister.  The council serves to highlight key economic issues facing the country to the government of India from a neutral viewpoint.  It advises the Prime Minister on a whole host of economic issues like inflation, microfinance, industrial output, etc. Josip Manolić (] ; born 22 March 1920) is a Croatian politician and former high-ranking official of the State Security Administration (UDBA or UDSA) who was the Prime Minister of Croatia from 24 August 1990 to 17 July 1991.  Croatia formally declared independence during his term, on 25 June 1991.  Having taken office as Prime Minister at the age of 70 and having left the office at the age of 71, he is the oldest person to date to have served as Prime Minister of Croatia.  Manolić is also the oldest currently living former prime minister at the age of and the longest-lived holder of the office.  Following his brief term as Prime Minister he served as the first Speaker of the Chamber of Counties, the upper house of the Croatian Parliament, from 1993 until 1994. Yogendra Yadav is an Indian politician, psephologist and academic whose primary interests are in the political and social sciences.  He has been a Senior Fellow at the Centre for the Study of Developing Societies (CSDS), Delhi since 2004.  He is a former member of University Grants Commission (UGC) and National Advisory Council (NAC) on Right to Education Act (RTE) appointed by United Progressive Alliance (UPA) government.  He was a member of the National Executive of the Aam Aadmi Party until 2015. 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.  She is the widow of former Prime Minister of India, Rajiv Gandhi who belonged to the Nehru–Gandhi family. Swaziland is an absolute monarchy with constitutional provisions and Swazi law and Custom.  The head of state is the king or "Ngwenyama" (lit.  "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.  According to the constitution of Swaziland, the King and Ingwenyama is a symbol of unity and the eternity of the Swazi nation.  By tradition, the king reigns along with his mother or a ritual substitute, the "Ndlovukati" (lit.  "She-Elephant").  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.  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.  The king is allowed by the constitution to appoint some members to parliament for special interests.  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.  This is done to balance views in parliament.  Special interests could be people of gender, race, disability, business community, civic society, scholars, chiefs and so on.  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.  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.  Elections are held every five years. 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.  Sonia Gandhi served as its Chairperson for much of the tenure of the UPA. Janine Pease is an American Indian educator and advocate.  She is the founding president of the Little Big Horn College as well as the past president of the American Indian Higher Education Consortium and director of the American Indian College Fund.  She was appointed by President Bill Clinton to the National Advisory Council on Indian Education and the White House Initiative on Tribal Colleges and Universities Advisory Council.  She has also served as a trustee of the Smithsonian National Museum of the American Indian.
Answer: Sonia Gandhi