saute onion, garlic and ginger until onion is transperant. add cumin, coriander, mustard, and chilles. cook 2 miniutes. add Chicken. stir until chicken starts to turn white. stir in turmeric salt cloves and cinnamon. cook 1 more minute. Add yogurt. stir until well blended. reduce heat , cover simmer for 1 hour. add cilantro and lemon juice and serve over rice.