Mithi dahi or mishti doi (Bengali: মিষ্টি দই, Hindi: मीठी दही, Odia: ମିଠା ଦହି) is a fermented sweet dahi or sweet yogurt. This type of yogurt is common in the states of West Bengal and Odisha in India, and in Bangladesh. It is made with milk and sugar, while also using yogurt and curd.Mitha dahi is a popular dessert in the states of West Bengal, Odisha and Bangladesh.