Bajra flour is made from small round grains of black millet, also called bajra. The flour is greyish in colour and has a slightly nutty flavour. Since it is a heat-producing ingredient, it is commonly used in winters. Benefits Bajra is rich in magnesium, which helps keep the heart-healthy. It has potassium, which dilates blood vessels, allowing blood to flow more easily. This helps reduce overall blood pressure. Bajra also has fiber that helps reduce LDL, or bad, cholesterol.