Boil water in a pan add turmeric & salt to it. Turn off the heat. Put the cabbage leaves & carrots in that hot water and leave it for 10 minutes. Then take the vegetables from the water and drain on paper towels.
Heat dalda in a pan and toast the buns. Then apply butter & little ketchup to the inner sides of the buns. Keep 1 cabbage leaf, 1 tomato slice, 1 steak (or) cutlet, 1 onion slice, 1 carrot slice in between two slices of a bun. Prepare all the buns in the same manner.