[1] As of the 2021 assembly elections, the current MLA is M. B. Rajesh of Communist Party of India (Marxist).

Thrithala Niyamasabha constituency is composed of the following local self governed segments:[2] The following list contains all members of Kerala legislative assembly who have represented Thrithala Niyama Sabha Constituency during the period of various assemblies:[3] Key CPI(M)   INC   Independent Percentage change (±%) denotes the change in the number of votes from the immediate previous election.

There were 1,94,108 registered voters in constituency for the 2021 election.

[4] There were 1,55,638 registered voters in constituency for the 2016 election.

[5] There were 1,78,784 registered voters in the constituency for the 2011 election.