Block B is an sublocality in Sigma 1 Greater Noida, Greater Noida, Gautam Buddh Nagar District, Uttar Pradesh, India. Sigma 1 Greater Noida (0.0 Km), Sector 41 (1.41 Km), RHO 2 (1.9 Km), RHO I (2.12 Km), Sector 31 (2.45 Km) are the nearby areas to Block B. Eachachhar, Greater Noida are the nearby cities to Block B.