Cancer, the second leading cause of death worldwide next to cardio vascular diseases. It causes more than six million deaths each year in the world. Among the various treatment methodologies chemotherapy is the more successful today. Natural origins are the current interest of discovery of natural drug for cancer treatment; here we have utilized worldwide available Tecoma stans flowers. Methanolic extract of Tecoma stnas flowers were tested for its anti cancer potential by invitro and invivo cancer animal models, In vitro antitumor activity evaluated by the MTT assay method using Vero and HEP...