India is the world's largest milk producer, with over 300 million animals in its dairy herd, primarily relying on the gyr cow breed. These cows can produce up to 50 liters of milk per day and have a long lifespan with a high reproductive rate. Besides milk, gyr cows are also valued for their by-products such as ghee, urine, and manure. The article also mentions the challenges of maintaining and improving milk yields in the highly fragmented Indian dairy industry, with a focus on the benefits of the gyr cow breed in semi-arid climates and its improved immunity.