Chandigarh, June 14 (UNI) Mai Bhago Armed Forces Preparatory Institute (AFPI) for Girls, SAS Nagar (Mohali) added another feather in its cap, as three of its alumni, Harnoor Singh, Kritee S Bisht and Alisha, have been commissioned as Flying Officers in the Indian Air Force, after successfully passing out from the Air Force Academy, Dundigal (Hyderabad) on Saturday.