Sainthamaruthu is a fast developing commercial area under the Kalmunai Municipal Council.
There is a separate Divisional Secretary's Division, an M.P.C.S., a main post office and a fully equipped basic hospital for this area.
This is one of the places in Sri Lanka where you find 100% Tamil Speaking Muslims and it is the heart of the Sri Lankan Muslim Congress which holds roughly 12000 votes which belongs to the SLMC political party.
MHM Ashraff was elected as a Member of Parliament then later he became the most dominant Muslim in Sri Lankan politics.
Deputy Minister S. Nijamudeen is also renowned for being one of the most approachable public figures in Sri Lankan politics as someone willing to listen to the common man during official and after hours.