Periyar Nagar Extension is an neighbourhood in Seva Nagar, Velachery, Chennai south, Chennai, Chennai District, Tamil Nadu, India. Velachery (0.0 Km), Adambakkam (2.22 Km), Madipakkam (3.18 Km), Guindy (4.49 Km), Alandur (4.59 Km) are the nearby areas to Periyar Nagar Extension. Ramapuram, Chennai, Meenampakkam are the nearby cities to Periyar Nagar Extension.