Chengannur Assembly constituency is one of the 140 state legislative assembly constituencies in Kerala, India. It is one of the seven assembly segments that constitute the Mavelikara Lok Sabha constituency. Since 2021, it has been represented by Saji Cherian of the Communist Party of India (Marxist).
Chengannur Assembly constituency is composed of the following local self-governed segments:
The following list contains all members of Kerala Legislative Assembly who have represented the constituency:
Key
As of 2026, the constituency has 189,490 voters. As per estimates 32% of the electorate is Nair, 24% Ezhava and 30% Christians predominantly from Malankara Orthodox Syrian Church and Mar Thoma Syrian Church.
Percentage change (ñ%) denotes the change in the number of votes from the immediate previous election.
There were 2,08,498 registered voters in the Chengannur constituency for the 2021 Kerala Assembly election.
Following the death of the sitting MLA K. K. Ramachandran Nair, a by-election was held in the Chengannur constituency on 28 March 2018. There were 2,00,137 registered voters in the constituency for the by-election.
There were 1,97,372 registered voters in the constituency for the 2016 Kerala Assembly election.
There were 1,76,875 registered voters in the constituency for the 2011 election.
There were 1,21,105 registered voters in the constituency for the 2006 election.
There were 1,31,196 registered voters in the constituency for the 2001 election.