We present a rare case of management of accidental transection of superior vena cava (SVC) during a right sided pneumonectomy for a tuberculous destroyed lung in an eighteen year old girl. While dissecting the right pulmonary artery (RPA) in a densely adherent and grossly distorted field for a planned right pneumonectomy, the SVC got transected resulting in torrential hemorrhage and severe hypotension. The ragged ends of the SVC were clamped. Fluids and inotropes were directly transfused into the right atrium (RA) which was exposed by opening the pericardium. Soon, the mean arterial pressure (MAP) could be stabilized around 50 mm Hg which had dropped to 25 mm Hg. To protect the brain from effects of increased intra cranial venous hypertension (ICVH) due to SVC clamping, the head end of the table was elevated, injection thiopentone (1000 mg) was given directly into RA and the head was wrapped with ice bags. Since the cut ends of the SVC was far apart and ragged, we could not bring them together for an end to end anastomosis. After heparinisation, a SVC to RA veno atrial (VA) shunt using venous cannulae was made and the SVC remained clamped for 20 minutes. With the establishment of the shunt, MAP increased to 80mm Hg. Pneumonectomy was completed. Since no graft could be procured, the upper end of the SVC was anastomosed end to end with the cut end of the RPA and the lower end of SVC towards the RA was closed. Post operative recovery was uneventful and the girl is doing well 6 years after the procedure. Angiograms have shown a patent SVC to RPA anastomosis with a substantial retrograde flow through the intact azygos vein (AzV).