Bandaranaike returned to Sri Lanka in 1974, when his mother was serving her second term as Prime Minister. He soon became active in the Sri Lanka Freedom Party, having been appointed leader of its Youth Wing and there after Director of the National Youth Services Council. He contested the 1977 general election from the Maskeliya multi-seat constituency from the Sri Lanka Freedom Party. Though the Sri Lanka Freedom Party faced a crushing defeat in the election, Bandaranaike was elected to parliament. He would remain a member of parliament till his death. Following the defeat of Sri Lanka Freedom Party government in July 1977, Bandaranaike sat in the opposition in parliament with his mother. The Sri Lanka Freedom Party became a minority in the opposition and A. Amirthalingam of the Tamil United Liberation Front became the leader of the opposition. In October 1980, following an investigation by a Special Presidential Commission appointed by President J. R. Jayawardene found corruption and abuses of power, Sirima Bandaranaike and her nephew, Felix Dias Bandaranaike had their civil liberties stripped for a period of seven years by a motion in parliament. Sirima Bandaranaike remained the party leader, but Anura Bandaranaike became the de-factor leader of the Sri Lanka Freedom Party parliamentarian group.
Opposition leader
With this backdrop, Anura Bandaranaike became the leader of the opposition in November 1983, when the incumbent Amirthalingam boycotted parliament and lost his seat in October 1983 while refusing swear an oath unconditionally renouncing support for a separate state. Bandaranaike served as leader of the opposition till 1988, holding a position once held by his father and mother before him.
Rift within the party
He contested the 1989 general election from the Gampaha Electoral District, which was the traditional based of the Bandaranaike family. Elected to parliament with preferential votes over one hundred thousand, he once again sat in the opposition with his mother who had regained her civic rights and became the leader of the opposition having been elected to parliament. He soon fell out with his mother and was suspended from the family party by Sirima Bandaranaike. The rift was aggravated by the return to the party of his sister Chandrika Kumaratunga who had left the family party in 1984 to join the Sri Lanka Mahajana Pakshaya formed by her husband Vijaya Kumaratunga. She then went into exile in London following Kumaratunga's assassination.
He crossed over to ruling United National Party in 1993 which appointed him Minister of Higher Education and National Reconciliation under President Dingiri Banda Wijetunge. Chandrika Kumaratunga won the 1994 general election becoming Prime Minister and thereafter won the presidential election to become President. Anura Bandaranaike, returned to the opposition from 1994 to 2000 as a National List member of parliament, he contested under the UNP ticket to Gampaha District at the 2000 General Elections and was reelected to the Parliament securing over 80000 preferential votes.
Speaker of the Parliament
He was uncontestedly elected as Speaker of the 11th Parliament and served from 18 October 2000 to 10 October 2001, when parliament was dissolved and fresh elections called.
Return to the Sri Lanka Freedom Party
He rejoined SLFP in 2001 to contest the elections in December that year, although the SLFP with its coalition faced a massive defeat Bandaranaike was elected to Parliament. When the SLFP led alliance of UPFA won the elections in 2004 with support of the JVP, Bandaranaike was reelected as a member of parliament to the Gampaha District and became Minister of Tourism, Industry and Investment in the new government. Following the assassination of foreign minister Lakshman Kadirgamar in August 2005, Bandaranaike was appointed as Foreign Minister, amidst increased tension throughout the country. He dropped his position as minister of industry and investment, but remained tourism minister. The party chose Mahinda Rajapakse over Bandaranaike as its candidate for the presidential election in 2005. Following Rajapakse's election victory it had been widely predicted that Bandaranaike would be appointed Prime Minister or remain as foreign minister. However, Rajapakse appointed Ratnasiri Wickremanayake as Prime Minister since many saw Bandaranaike didnot co-operate in the presidential campaign. He was slowly sidelined in the party as the Rajapakse bloc grew. However he was accused of playing a "negative"/"non supportive" role in the campaign and was offered only the tourism ministry instead. Even before the presidential elections in 2005, Anura was diagnosed to have a cancer. He recovered from the initial shock of the bad news but never recovered from the shock of having to accept the toothless National Heritage Portfolio in a cabinet reshuffle in January 2007. On 9 February 2007, he was sacked as the minister of national heritage, together with ministers Mangala Samaraweera and Sripathi Sooriyarachchi after falling out with the President Mahinda Rajapakse, the party leader. Less than two weeks later, after reconciling with Rajapakse, Bandaranaike agreed to come back into the government, again being sworn in as Minister of National Heritage. On the 14 December 2007 he crossed over to the opposition benches thus leaving his ministerial posts. Despite being in politics for over a quarter of a century, he has only been in a governing side for about 5 years.
Death
He died on 16 March 2008 in Colombo at his official residence, Visumpaya following a period of prolonged illness due to the cancer that had been diagnosed few years prior for which he was hospitalized for several months. A few weeks prior to his death, he had taken three months leave from parliament.
