The Main Eastern Highway is the lifeline of the high range townships of the Travancore region of Kerala state, India. It is also known as Punalur-Muvattupuzha Highway. Main Eastern Highway is categorized as State Highway - 08 ( SH-08 ) of Kerala. It is the second longest State Highway of Kerala covering a distance of 153.6 km. The districts it passes through are Kollam, Pathanamthitta, Kottayam, Idukki and Ernakulam.