Block 21 is an sublocality in Kalyan Puri, East Delhi, New Delhi, India. Kalyan Puri (0.0 Km), Vinod Nagar East (1.08 Km), Mayur Vihar II (2.31 Km), Patparganj (2.48 Km), Mayur Vihar Phase 3 (2.65 Km) are the nearby areas to Block 21. New Delhi, Noida, Bishanpura, Ghaziabad are the nearby cities to Block 21.