EVR Periyar Salai (EVR High Road), earlier known as Poonamallee High Road (NH 48) and originally the Grand Western Trunk Road, is an arterial road in Chennai, India. It is the longest road in Chennai. Running from east to west, the 14-kilometre (8.7 mi) road starts at Muthuswamy Bridge near Madras Medical College at Park Town and ends near Maduravoyal Junction via Kilpauk, Aminjikarai, Anna Nagar Arch, Arumbakkam, Koyambedu. It further continues west towards Poonamallee and traverses Sriperumbudur, Walajapet, and Ranipet.