Nee Soon Central Single Member ConstituencyNee Soon Central Single Member Constituency was a single member constituency in the northern area of Singapore. The seat consists of Yishun Town Centre, Neighbourhood 6 and part of Neighbourhood 7.HistoryThe constituency was formed in 1988 and has been held by the ruling party from 1988 to 1991 when the People's Action Party lost the seat to Singapore Democratic Party's Cheo Chai Chen but Cheo lost to Ong Ah Heng of the People's Action Party in the 1997 Singapore general election. Ong was subsequently reelected in 2001 and 2006 before retiring in the 2011 general election. In 2011, the constituency was merged into Nee Soon Group Representation Constituency.