01 - Combine beef with yogurt, lemon juice, ginger-garlic paste, salt, turmeric, coriander, and chili powder in a large bowl. Toss thoroughly to coat. Cover and refrigerate for at least 30 minutes, or overnight for optimal flavor development.
02 - Arrange onions, tomatoes, potatoes, and green chilies evenly across the bottom of the slow cooker insert.
03 - Place the marinated beef on top of the vegetable layer in the slow cooker.
04 - Sprinkle curry powder, cumin, paprika, bay leaves, cinnamon stick, cloves, and cardamom pods evenly over the beef.
05 - Pour beef broth and coconut milk over the ingredients. Stir gently to distribute spices without disturbing the vegetable base.
06 - Cover and cook on LOW setting for 8 hours or HIGH for 4 hours. The beef is done when tender and the sauce has thickened considerably.
07 - Discard bay leaves, cinnamon stick, cloves, and cardamom pods before serving.
08 - Taste and adjust seasoning with additional salt and pepper as needed. Garnish with fresh cilantro and serve hot accompanied by steamed rice or naan bread.