Sector 21 is an locality in Chandigarh, Chandigarh Capital Region, India. Sector 20 (1.32 Km), Sector 22 (1.33 Km), Sector 27 (3.0 Km), Sector 36 (3.54 Km), Sector 9 (3.87 Km) are the nearby areas to Sector 21. Chandigarh, Mohali are the nearby cities to Sector 21.