Dosa or Dose or Dosai is a fermented crepe or pancake made from rice batter and black lentils.It is indigenous to and is a staple dish in the southern Indian states of Andhra Pradesh, Karnataka, Kerala and Tamil Nadu as well as being popular in Sri Lanka. Dosa is also popular in Malaysia and Singapore, where the name Thosai is more common, and in Myanmar as Toshay.Dosa, a common breakfast dish and street food, is rich in carbohydrates, contains no sugar or saturated fats. Its constituent ingredients of rice and lentils mean it is gluten-free and contains protein. The fermentation process increases the vitamin B and vitamin C content. There are also instant mix products for making dosa, with somewhat lower nutritional benefits.