Sembium is a Neighbourhood in Chennai, near to Perambur and a developed residential area in North Chennai, a metropolitan city in Tamil Nadu, India, located at an altitude of 9 m above mean sea level. Sembium was a municipality (Sembium-Ayanavaram municipality) until it was annexed by Chennai. Sembium Post office is situated in Teeds Garden fourth street. Sembium Police station is located on Paper Mills road.