The modern state of Kerala was officially formed on November 1, 1956, by merging the princely states of Travancore and Cochin with the Malabar district of Madras Presidency. The first assembly elections were held shortly thereafter, ushering in a unique political history defined by the frequent alternation of power between the Communist and Congress-led fronts.
- E.M.S. Namboodiripad (CPI / CPI-M)
As the inaugural Chief Minister, E.M.S. Namboodiripad led the world’s first democratically elected Communist government. His first term began on April 5, 1957, and lasted until his government was dismissed under Article 356 on July 31, 1959. He returned for a second term, this time representing the CPI(M), from March 6, 1967, to November 1, 1969. - Pattom A. Thanu Pillai (PSP)
A veteran politician from Travancore, Pattom A. Thanu Pillai of the Praja Socialist Party (PSP) assumed office on February 22, 1960. He served until September 26, 1962, before stepping down to take the role of Governor of Punjab, handing the leadership over to his Deputy. - R. Sankar (INC)
Following the resignation of Thanu Pillai, R. Sankar of the Indian National Congress (INC) took charge as the Chief Minister on September 26, 1962. He served for nearly two years until his government lost power, leading to President’s Rule from September 10, 1964. - C. Achutha Menon (CPI)
C. Achutha Menon led the state for the longest continuous period in the early decades. He first held the post from November 1, 1969, to August 1, 1970. After a short period of President’s Rule, he returned for a second, extended term from October 4, 1970, to March 25, 1977, successfully steering the state through the tumultuous Emergency period. - K. Karunakaran (INC)
Known as the “Leader,” K. Karunakaran served as Chief Minister in four non-consecutive terms. His first tenure was the shortest in Kerala’s history, lasting only from March 25, 1977, to April 25, 1977. He returned twice in the early 1980s (December 28, 1981, to March 17, 1982, and May 24, 1982, to March 25, 1987) and finally from June 24, 1991, to March 16, 1995. - A.K. Antony (INC)
A.K. Antony holds the distinction of being the youngest Chief Minister when he first took the oath. He served three non-consecutive terms: his first was from April 27, 1977, to October 27, 1978; his second from March 22, 1995, to May 9, 1996; and his third from May 17, 2001, to August 29, 2004. - P.K. Vasudevan Nair (CPI)
P.K. Vasudevan Nair of the Communist Party of India (CPI) served a brief term during a period of political instability, holding the office from October 29, 1978, to October 7, 1979. - C.H. Mohammed Koya (IUML)
C.H. Mohammed Koya is the only person from the Indian Union Muslim League (IUML) to have served as Chief Minister. His tenure was notably brief, running from October 12, 1979, to December 1, 1979. - E.K. Nayanar (CPI-M)
E.K. Nayanar holds the record for the longest total tenure as Chief Minister, serving three non-consecutive terms. His terms were from January 25, 1980, to October 20, 1981; March 26, 1987, to June 17, 1991; and his final term from May 20, 1996, to May 13, 2001. - Oommen Chandy (INC)
Oommen Chandy served two terms as Chief Minister. His first term began on August 31, 2004, and concluded on May 12, 2006. He returned to power for his second full term from May 18, 2011, to May 20, 2016. - V.S. Achuthanandan (CPI-M)
A veteran Communist leader, V.S. Achuthanandan led the state for a single, full five-year term, serving as Chief Minister from May 18, 2006, to May 14, 2011. - Pinarayi Vijayan (CPI-M)
The incumbent Chief Minister, Pinarayi Vijayan, first assumed office on May 25, 2016. After the 2021 assembly elections, he was sworn in for a second consecutive term on May 20, 2021, becoming the first Chief Minister of Kerala to be re-elected for a continuous full term.