Santhi Nagar is an sublocality in Kolathur, Chennai North, Chennai, Chennai District, Tamil Nadu, India. Kolathur (0.0 Km), Retteri Lake (3.19 Km), Ponniammanmedu (3.38 Km), Surapet (3.92 Km), Villivakkam (4.11 Km) are the nearby areas to Santhi Nagar. Manjampakkam, Chettimedu, Puthagaram, Lyon, Chennai are the nearby cities to Santhi Nagar.