Very little data is available with regard to the prevalence of GDM from western Rajasthan which forms the Great Thar Desert. People here face living conditions different from their fellow countrymen, like arid climate, paucity of resources, and illiteracy. This is quite strange as a lot of research focus today is on the well-being of mother and the newborn child in general and the situation of GDM or diabetes in particular. The present study, therefore, has compiled data regarding the prevalence of GDM from western Rajasthan and its effect on pregnancy outcomes. In the present study, the Diabetes in Pregnancy Study Group India (DIPSI) guidelines have been followed for screening of subjects, so that a uniform protocol followed by similar groups in other parts of the country could enable a fair and judicious correlation with each other. Besides, DIPSI guidelines also facilitate both economical and feasible mode of evaluation. DIPSI diagnostic criterion of 2 h plasma glucose more than 140 mg/dl with 75 g oral glucose load is a modified version