[5] It is one of the two major political alliances in Kerala, the other being Communist Party of India (Marxist)-led Left Democratic Front, each of which has been in power alternately since 1980 E. K. Nayanar ministry.

United Democratic Front was created by the Indian National Congress (then known as Congress-Indira) party leader K. Karunakaran in 1979, as a successor to the existing Congress-led alliance.

[11] The alliance currently acts as the opposition in the state legislature of Kerala (after the 2021 legislative assembly election).

However, the fall of the first Left Democratic Front ministry resulted in the 6th President's Rule in Kerala (1981).

[25] During his third tenure as Chief Minister (1982–87), Karunakaran directly handled the Scheduled Castes Development.

[28] Other major infrastructure projects introduced during the terms of Karunakaran include the Goshree Bridges of Kochi, Guruvayur Railway Line, and Rajiv Gandhi Combined Cycle Power Plant at Kayamkulam.

[citation needed] Antony administration was instrumental in the establishment of Rajiv Gandhi Centre for Biotechnology at Thiruvananthapuram.

[34] It was at Chief Minister Antony's behest that the decision to construct the new Kerala Legislature Complex was taken in 1977.

[39] The Chandy ministry established new Government Medical Colleges in Kerala (in 2013, after a gap of 31 years).

[40][41] The "Karunya Scheme" was implemented in the year 2011–12 for the free treatment of patients with cancer, haemophilia, kidney, and heart diseases.

[49] The National University of Advanced Legal Studies at Kochi was founded in 2005 and the Indian Institute of Technology at Palakkad was established in the year 2015.

[63] Chandy received the United Nation's Public Service Award for his Mass Contact Programme ("Jana Samparkka Paripadi").

[55] Other social welfare measures during Chandy reign include free ration for those who lost their employment.

[65] Chandy's regime was instrumental in beginning the construction of Kannur Airport,[63][66] the Kochi Metro,[63][67][66] and the Vizhinjam Port near Thiruvananthapuram.

The following is the list of United Democratic Front Lok Sabha members from the state of Kerala: Key

The following is the list of United Democratic Front Rajya Sabha members from the state of Kerala: Key