Shailender Singh, a 45-year-old man from Kanpur, underwent a life-saving surgery after living with a bullet lodged in his left lung for 16 years. The bullet, which was perilously close to his heart, caused life-threatening symptoms that worsened over time, including severe chest pain and coughing up blood. Initially, specialists in Kanpur advised against surgery due to the bullet's dangerous location near vital structures. However, after a significant increase in symptoms, Singh sought treatment at Max Super Speciality Hospital in Delhi, where Dr. Shaiwal Khandelwal and his team performed an emergency operation to remove the bullet and a damaged part of his lung. The surgery was successful, and Singh is now recovering well at home. This rare case highlights the complexities and risks associated with treating retained bullets in the body.