This document discusses the estimated incidence, mortality, and 5-year prevalence of four common cancers - cervical cancer, breast cancer, lung cancer, and stomach cancer - globally and in India in 2012. It also outlines some of the key risk factors and preventive measures for each type of cancer. The risk factors discussed include age, family history, lifestyle factors like smoking and diet, occupational exposures, socioeconomic status, and infectious agents. The preventive measures recommended are promoting public education and screening, reducing risk factors like smoking, and early detection and treatment of cancers.