The thirteenth Kerala legislative assembly election was held on 13 April 2011 to elect members representing 140 constituencies in Kerala. Election results were released on 13 May 2011. The election, whose results were released on 13 May 2011, proved to be one of the closest ones in Kerala's history, with the United Democratic Front (UDF) beating the Left Democratic Front (LDF) by a margin of 4 seats. Oommen Chandy was sworn in as the Chief Minister for the second time on 18 May 2011. Parties and coalitions There are three major political coalitions in Kerala. The United Democratic Front (UDF) is the coalition of centrist and centre-left parties led by the Indian National Congress. The Left Democratic Front (LDF) is the coalition of leftwing and far-left parties, led by the Communist Party of India (Marxist) (CPI-M). The right-wing Bharatiya Janata Party (BJP) is also contested in the state and fielded candidates in 139 constituencies, with one seat to their NDA alliance partner Janata Dal (United). United Democratic Front Left Democratic Front Third Front Other Parties The Bahujan Samaj Party (BSP) is contesting in all the 140 seats. The All India Anna Dravida Munnetra Kazhagam (AIADMK) contests in 6 seats in the state. The Socialist Unity Centre of India (Communist) (SUCI) is contesting in 26 seats. The Social Democratic Party of India (SDPI) fielded candidates in 84 constituencies. The Shiv Sena is contesting 44 seats, without any alliance with the BJP. Seat allotment Common election symbols are provided only to national parties and registered recognized state parties. Registered unrecognized parties are given free symbols as per availability, based on request. UDF The Indian Union Muslim League contests the elections as Muslim League Kerala State Committee. LDF § R. Selvaraj won the election as a Communist Party of India (Marxist) (CPI (M)) candidate but later resigned and won again from Neyyanttinkara Constituency in the by-election The official constituency-wise list of candidates with their election symbols Constituencies There are 140 constituencies in Kerala, spread over 14 districts, based on the Delimitation commission of 2002. Many constituencies present in the 2006 elections become non-existent and 24 new constituencies came into existence following the delimitation. Kanhangad Mattannur Dharmadam Kalliasseri Elathur Kuttiady Eranad Vallikkunnu Kottakkal Vengara Thavanur Kongad Tarur Shornur Kaipamangalam Puthukkad Kalamassery Kochi Thrikkakara Vattiyoorkavu Aruvikkara Nemom Kattakkada Thiruvananthapuram Aranmula constituency in Pathanamathitta district is the only seat in the state that has over two