(V) Undhiyu is a traditional Gujarati vegetable dish that is a regional specialty of Surat, India. The name of this dish comes from the Gujarati word "undhu", which translates to upside down, since the dish is traditionally cooked upside down underground in earthen pots, termed "matlu", which are fired from above. Fact: World’s 95% of the rough diamonds are cut and polished in the city of Surat, India.