Cancer is a disease that involves uncontrolled cell growth has a potential to invade and spread in other parts of the body. They form neoplasm or a tumor a group of cells often converts into a mass or lump. Drugs which are used to treat it are known as antineoplastic or anti cancerous agents. There may be different causative factors which lead cancer. Hepatitis B virus, cigarette smoking, benzopyrene, asbestos, exposure of radiations have Cancer originating ability. Various naturally occurring as well as synthetic drugs have been investigated to treat it, Chemotherapy and radio therapy are frequently used today. But due to their huge side effects researches are going on. Among these use of naturally occurring anti cancerous drugs are rather more safe and cost effective.