Sonai Assembly constituency is one of the 126 state legislative assembly constituencies in Assam state in North Eastern India.

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

Sonai As per orders of the Delimitation Commission, No.10 Sonai Assembly constituency is composed of the following:Sonai thana [excluding circle Nos.

54 (Part) and Hill Punjee and forest villages] and circle Nos.

58 (Part) in Dholai thana in Silchar sub-division.