Preheat the grill or grill pan over medium-high heat.
Toss the corn kernels with olive oil, salt, and pepper. Place them on the grill and cook for about 8-10 minutes, turning occasionally, until nicely charred. Remove from heat and let cool slightly.
In a large mixing bowl, combine the diced red bell pepper, cucumber, chopped red onion, chickpeas, and cilantro.
Add the charred corn to the bowl. Sprinkle the ground cumin over the mixture, season with additional salt and pepper to taste, and gently toss to combine.
In a separate bowl, whisk together the Greek yogurt, lime juice, lime zest, minced garlic, and a pinch of salt to make the lime crema.
Serve the salad on plates or in bowls, drizzled with the lime crema on top.