This study summarizes the current state of knowledge on the harmful effects associated with cigarette smoking & alcohol consumption. The World Health Organization predicts that tobacco deaths in India may exceed 1.5 million annually by 2020. However, considerable research is required to comprehend the actual trends. Nationally representative and reliable prevalence data on tobacco consumption are scarce. Similarly, the sociodemographic predictors of tobacco smoking and chewing are poorly understood. The existing studies on prevalence of tobacco use are based on non-representative sample...