Gestational diabetes mellitus represents both a clear pathological condition of glycaemic dysregulation and a factor aggravating the risk of future diabetes in both the mother and child. Thus it is of paramount importance to control and manage pregnancy complicated by diabetes to improve the health and well-being of the mother and avert the risk of diabetes across generations. Currently, a wide variety of national and international guidelines address clinical questions pertinent to diabetes management during pregnancy. Of them, the pioneering Diabetes in Pregnancy Study Group India (DIPSI) guideline for the management of diabetes during pregnancy has previously set new standards for quality diabetes care in India and around the world. The advent of insulin analogues, pen delivery devices and insulin pumps, has enriched our armamentarium to manage diabetes and thus warrants our due attention. The current guideline is an attempt to present an overview of current knowledge relating to the management of diabetes in pregnancy and to update available guidelines in view of advances in insulin therapy. These guidelines represent the amalgamation of updated clinical evidence with expert inputs in the context of Indian clinical practice.