Tewan graduation Bachelor of Laws from Chulalongkorn University.

Tewan entered politics by being elected a member of the House of Representatives for the first time in March 1992 under the Justice Unity Party and has been elected for a total of 3 times.

In 2007, he was disqualified from politics for five years for serving as a member of the executive committee of the Thai Rak Thai Party.

In 2018, Tewan was elected as the leader of the Chart Pattana Party.

This article about a Thai politician is a stub.