Traditional Food of India Kosha Mangsho Kosha Mangsho (Mutton Kosha, Mutton Kasha) is a very popular traditional curry in Bengal, and its literal meaning is sautéed meat. It is made with mutton (goat meat), onions, spices, and other basic ingredients. Mangsho means meat, and the word Kosha comes from Koshnao, which means cooking on slow heat with spices.