Block A is an sublocality in Sigma 1 Greater Noida, Greater Noida, Gautam Buddh Nagar District, Uttar Pradesh, India. Sigma 1 Greater Noida (0.0 Km), RHO 2 (1.9 Km), RHO I (2.12 Km), Sector 31 (2.45 Km), Omicron 1A Greater Noida (2.56 Km) are the nearby areas to Block A. Eachachhar, Greater Noida, Rampur Jagir are the nearby cities to Block A.