IWok's are good for stir fry's but I don't think suitable for Indian Curry making,
??
see definition of a Karahi from Wikipedia
A Karahi (also spelled Kadai, Karai - both pronounced the same, ka-rai /kəˈraɪ/) is a type of thick, circular, and deep vessel (similar in shape to a wok) used in Indian and Pakistani cuisine
And to follow on it says -
A Karahi (also spelled Kadai, Karai?both pronounced the same, ka-rai /kəˈraɪ/) is a type of thick, circular, and deep vessel (similar in shape to a wok) used in Indian and Pakistani cuisine. Also known as a kadai or cheena chatti, it is useful for shallow or deep frying of meat, potatoes, sweets, and snacks such as samosa and fish, and for simmering of stews (which are often named after the utensil).
Karahi are traditionally made out of cast iron, although other materials like stainless steel and copper are sometimes used, and non-stick varieties do exist.
OK for frying stuff in Oil as in ' deep frying ' but no good for making your usual T/A style Curry ,
at the Garlic / Ginger frying stage and when you add the Spices you need to have some room in the pan to push the ingredients to the side of the pan away from the hottest part of the pan ( the centre in the case of a Gas Ring Burner ) and because of the shape of a Wok everything wants to slide back into the centre ( again the hottest part ) once the Base Sauce is added it doesn't cause a problem and any simmering would be fine with a Wok , you don't' see many Woks being used for making Curries in T/A
