This research aims to study medicine and doctors in India during the era of Dehli Sultans since the beginning of Mamluk state until the end of Tughlaq State; this is carried out by extrapolation of source texts in both Persian and Arabic, which included many marks indicating popularity of Indian medical science, whether in production or treatment, such sources also indicate the extent to which the Sultans of Dehli cared for medicine and doctors, in addition to the prestigious status they enjoyed during that era, this research tracks the most famous doctors who clearly emerged in the field of medicine and its knowledge, as their ingenuity in treating many prevalent diseases in Indian society, in their tasks, they were guided by their knowledge in causes of diseases and means of treatment. The research also emphasized the skill of Indian doctors and their ability to diagnose and treat, as well as a focus on pharmaceutical industry, medicine, Therapeutic medicines and alcohol, and medicinal pastes, a type of industry in which Indian doctors have shown distinguished skill in composition and preparation, In addition to establishing healing and treatment homes, during that era of the Sultans of Dehli, the research has not ignored familiarity with some false beliefs in Indian medicine, followed by the conclusion and the most important results of the study.