Begin by creating the marinade. In a substantial mixing bowl, combine the fat-free yogurt with the lemon juice, garlic, ginger, turmeric, paprika, cumin, optional hot chili pepper, salt, and black pepper. Stir these ingredients until a homogeneous mixture is achieved.

Incorporate the chicken pieces into the prepared marinade. Ensure that each piece is thoroughly coated with the marinade. Cover the bowl with a suitable lid or plastic wrap and refrigerate. Allow the chicken to marinate for a minimum of one hour, though an extended marination period overnight is preferable to enhance the flavors.

Prepare the cooking surface by preheating a grill or a frying pan over medium heat.

Prior to cooking, lightly brush each piece of marinated chicken with olive oil. This prevents sticking and aids in achieving a desirable char on the chicken. Place the chicken on the grill or in the pan and cook, turning occasionally, for approximately 6 to 8 minutes or until the chicken is fully cooked and the juices run clear.

Serve the prepared Chicken Tikka accompanied by a side of roasted vegetables or a fresh salad to complement the dish.