Restaurant style butter chicken

Name: Restaurant style butter chicken
Ingredients: For marination; 1 kg chicken with bones; 3 tbs yogurt; 1 tsp red chilli powder; to taste Salt; 1/2 tsp black pepper powder; 1 tbsps lemon juice; 1 tbsps fenugreek leaves; for gravy; 4 tomato purée; 1/2 cup cashews and almonds paste; 1/2 cup fresh cream; 3-4 tbsps curd; 2-3 cardamom; 2-3 cinnamon; 3-4 black pepper; 2-3 cloves; 1 & 1/2 tsp salt; 1 tsp garam masala powder; 2 tsp coriander powder; 2-3 green chilli; 1 tbsp ginger garlic paste; 2-3 tbsp butter; 1/2 cup finely chopped coriander; 1 tbsp fenugreek leaves