Cook the wild rice. Prepare the rice according to package directions, omitting any butter or seasoning packets. Once cooked, rinse under cold water to cool, drain thoroughly, and transfer to a large mixing bowl.
Prepare the salad. Add the diced radishes, red onion, toasted pecans and walnuts, chopped parsley, raisins, and golden raisins to the cooled wild rice. Gently toss to combine.
Make the curry vinaigrette. Combine the olive oil, white wine vinegar, sugar, curry powder, salt, and black pepper in a small jar with a tight-fitting lid. Shake vigorously for 30–45 seconds until well combined and the sugar has dissolved.
Dress the salad. Pour the curry vinaigrette over the wild rice mixture and toss gently until everything is evenly coated.
Serve or chill. Serve immediately or refrigerate until ready to enjoy. Give the salad another gentle toss before serving.