Whisk the curd and keep it aside.
Peel the cucumber and cut about 1/2 inch from both the ends. Dry the water from it and grate the Cucumber.
Now put grated Cucumber, salt, green chilly, black pepper, roasted cumin seed powder into the curd and mix them well. Cucumber Raita is ready.
Take out the raita in a serving bowl, and garnish it with roasted cumin powder. Serve it along with your meal.