It is also one of the 7 state legislative assembly constituencies included in the Pathanamthitta Lok Sabha constituency.

[1] The current MLA is Mathew T. Thomas of JD(S).

Thiruvalla 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 the constituency: Key CPI  KEC  INC  Independent  JP  KC(M)   JD(S) Sabha * indicates bypolls Percentage change (±%) denotes the change in the number of votes from the immediate previous election.

There were 2,08,798 registered voters in the constituency for the 2016 Kerala Niyamasabha Election.

[3] There were 1,93,874 registered voters in the constituency for the 2011 election.