First win (1970)
On September 17, 1970, Youth Congress state president Oommen Chandy's first fight. Symbol coconut.

A fierce three-tier fight. Sitting CPM MLA E M George, who has won twice before is the main rival. Chandy won by 7,288 votes. Member of Legislative Assembly since October 4, 1970.

Chandy was 27 then. Five youth Congressmen under the age of 30 reached the assembly that day. A K Antony, N Ramakrishnan, Kottara Gopalakrishnan and A C Shanmughadas.

Second Victory (1977)
The assembly elections scheduled for September 1975 were held on March 19, 1977 due to emergency. Chandy's second stint in Puthupally. Won by 15,910 votes. Defeated Janata Party's P C Cherian.

Won an all-time record of 111 seats under the leadership of UDF’s K Karunakaran and came to power on March 25. Chandy became Minister of Labour at the age of 33. Following the court verdict in the Rajan case, Karunakaran cabinet resigned a month later on April 25. A K Antony became the chief minister at the age of 36. Ministers including Oommen Chandy continued.

Third win (1980)
Based on the all-India split in the Congress, a faction in Kerala became part of the Congress headed by Devaraj Arash. Chandy won by 13,659 votes contesting from the Left Front comprising Congress U. MRG Panicker of NDP was the opponent. After 16 months, the Congress U withdrew its support to the cabinet. Then Congress A was formed and Chandy became the parliamentary party leader of the A faction.

A new cabinet was formed on December 28 in 1981 under the leadership of K Karunakaran with the support of 71 including Congress A. Oommen Chandy was the home minister.

Fourth win (1982)
Independent candidate Thomas Rajan was the opponent. Oommen Chandy won by 15,983 votes. The two Congresses merged in the meet held in Kochi in the presence of Indira Gandhi on December 13 in 1982. K Karunakaran became the parliamentary party leader and Oommen Chandy deputy leader.

Fifth Victory (1987)
Won by 9164 votes after defeating V N Vasavan of the CPM

Sixth win (1991)
CPM's VN Vasavan was the opponent for the second time. Chandy won by 13,811 votes. On June 24, 1991, K Karunakaran became the chief minister for the fourth time and Chandy became the finance minister.

Seventh win (1996)
Won by 10,155 votes against Reji Zacharia of CPM

Eighth win (2001)
Cherian Philip an unexpected left opponent. Chandy won by 12,575 votes. A K Antony became the chief Minister for the third time. Chandy became the UDF convener. K Muraleedharan, who was KPCC chief and MP resigned his posts and became Minister of Power. In the 2004 Lok Sabha elections, the UDF lost all 19 seats except Ponnani. Taking responsibility for the defeat, A K Antony resigned from the post. Chandy became the 19th chief minister of Kerala on August 31 in 2004. His main slogans were ‘Athivegam and Bahudooram’.

Ninth win (2006)
Sindhu Joy of CPM was the main opponent. Oommen Chandy won by 19,863 votes.

Tenth win (2011)
CPM's Suja Susan George was his rival candidate. Oommen Chandy won by a huge majority of 33,255 votes. The UDF government came to power in Kerala with 72:68.

Chandy became CM a second time on May 18, 2011

His main slogan was Vikasanavum and Karuthalum (development and care). A good performance in the Lok Sabha elections but later embroiled in controversies. Solar scam and bar bribery allegations weakened the government.

Eleventh win (2016)
SFI leader Jaik C Thomas opponent. Chandy won by 27,092 votes.

Twelfth win (2021)
Won after defeating Jaik C Thomas again