The United Democratic Party may be a party recognised in Meghalaya state, India. its now led by Metbah Lyngdoh. it had been started by E. K. Mawlong.
The Flag of the party shall be of three vertical colours with scarlet red colour at the acute left nearest to the flag post, parrot green colour at the acute right and white colour at the center signifying respectively courage, valour and sacrifice (Scarlet Red), sincerity, honesty, integrity (White) and hope, hard work, survival (Green)
In 1998, B. B. Lyngdoh was sworn-in as Chief Minister of Meghalaya with the support of his erstwhile rival, the Indian National Congress. UDP won 20 MLAs within the 60-member house and with 26 MLAs Indian National Congress was senior partner within the Alliance. There was a power-sharing agreement between the UDP and Indian National Congress to share the Chief Minister position for 2 and a half years each. D. D. Lapang was named Deputy Chief Minister of Meghalaya.
In 2000, E. K. Mawlong succeeded B. B. Lyngdoh because the Chief Minister of Meghalaya. Mawlong in his 18-month tenure was embroiled during a scandal stemming from the development of Meghalaya House in Kolkata. Bharatiya Janata Party and Nationalist Congress Party withdrew their support for Mawlong and he was forced to step down from office in December 2001.
In 2008, UDP formed Meghalaya Progressive Alliance along side Nationalist Congress Party, Hill State Peoples Democratic Party , Khun Hynniewtrep National Awakening Movement, Bharatiya Janata Party and along side two Independents.
Despite being the most important party, the Nationalist Congress Party gave up the Chief Minister post to UDP so as to realize stability within the Government. There also are some reports of a power-sharing agreement between the UDP and NCP to share the Chief Minister position for 2 and a half years each.
Dr. Donkupar Roy was named the Chief Minister of Meghalaya with the support of 31 members within the 60 member Assembly.In May 2009, the United Democratic Party and therefore the Hill State Peoples Democratic Party had left the Progressive Alliance and government collapsed.