Block B is an neighbourhood in Rajarathnam Colony, Kodungaiyur East, Chennai, Chennai District, Tamil Nadu, India. Kodungaiyur East (0.0 Km), Kodungaiyur West (1.87 Km), Vyasarpadi (2.56 Km), Moolakadai (2.88 Km), Washermanpet (3.17 Km) are the nearby areas to Block B. Elandancheri, Chennai are the nearby cities to Block B.