Mix yogurt, tomato paste, vinegar, garlic, ginger, onion powder (if using), and spices.
Marinate chicken for 30 minutes.
Sauté cloves, curry leaves, chilies, and onion (if using).
Add chicken and brown for 5 minutes.
Stir in remaining marinade and water.
Simmer 15–20 minutes until thick.
Finish with cilantro, lemon juice, and serve over basmati rice.
