Mount-Poonamallee Road

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St. Thomas Mount-Poonamallee Road, popularly known as the Mount-Poonamallee Road (SH-55), is an arterial road in the city of Chennai, India. It runs for 11 kilometres from Kathipara Junction to the NH 4 highway connecting St. Thomas Mount with the suburb of Poonamallee. A 5-kilometre stretch of the Mount-Poonamallee Road is located in the Alandur taluk of Chennai district, part of Maduravoyal Taluk in Chennai district and the remainder in the Poonamallee taluk of Thiruvallur district.