The only raita I ever make as it is so tasty, here is the recipe:
570mls Plain yogurt
13cms Cucumber peeled and coarsely grated
2 Tablespoons finely chopped mint
Half a teaspoon ground roasted cumin seeds
Quarter of a teaspoon cayenne pepper
Salt and pepper to taste.
Beat the yogurt gently in a bowl until creamy and add all the other ingredients, cover and pop in the fridge - yum!!