In a large mixing bowl, combine the boneless chicken thighs with cumin, paprika, turmeric, coriander, minced garlic, olive oil, freshly squeezed lemon juice, salt, and pepper. Mix well to ensure each piece is evenly coated. Cover the bowl and let the chicken marinate in the refrigerator for at least 20 minutes.

While the chicken marinates, preheat your grill or grill pan over medium-high heat for about 5 minutes. Lightly oil the grill grates to prevent sticking.

Once the grill is hot, place the marinated chicken thighs onto it. Grill for approximately 16 minutes total, flipping halfway through for even cooking.

While the chicken cooks, mix garlic sauce ingredients together. Combine minced garlic with yogurt or mayonnaise, and add salt and lemon juice to taste. Let the sauce sit to meld flavors.

Once the chicken is fully cooked, remove it from the grill and let it rest for a few minutes. Slice into thin strips and serve over pita bread or wraps with fresh vegetables and garlic sauce.