This document is a project report submitted by Ishant Gautam for their summer internship at Hindustan Aeronautics Limited (HAL) Lucknow division. It begins with an acknowledgment and declaration section. It then provides a profile of HAL, describing its products, services, divisions, vision, mission and core business activities. The next chapters describe the factories at HAL Lucknow including the mechanical, instrument and fuel factories. It also provides basics on aircraft structure and controls. The report concludes with suggestions to enrich training programs.