Type2 diabetes is a genetically heterogenous disease with various combinations of susceptibility genes.Environmental factors such as obesity,multible genes are responsible each contributing a small amount to overall risk.Insulin resistance is considered to be very risk factor for type2 diabetes.Several studies on various population reported that small size at birth coupled with subsequent obesity increases risk for insulin resistance syndrome in later life.Aim of this study is to find out mutations in the candidate genes responsible for type2 diabetes.Here we have discusssed about the causes...