Marinate the beef mince: In a bowl, add beef mince, ginger garlic paste, and raw papaya paste. Mix well, cover, and marinate for 30 minutes.
Prepare spiced yogurt mixture: In another bowl, combine yogurt, cream, roasted gram flour, nutmeg powder, mace powder, black pepper powder, red chili powder, coriander powder, Himalayan pink salt, turmeric powder, cardamom powder, and cinnamon powder. Mix well.
Mix marinated mince with spiced yogurt: Add the spiced yogurt mixture to the marinated beef mince, mix thoroughly, and set aside.
Fry cashew nuts: In a wok, heat 1 tbsp cooking oil, add cashew nuts and fry until golden. Remove and set aside.
Sauté capsicum: In the same wok, add the julienned capsicum and sauté for one minute. Remove and set aside.
Cook the marinated mince: Add 2-3 tbsp cooking oil to the wok, add the marinated mince, mix well, and cook on high flame until moisture reduces and oil separates, about 8-10 minutes.
Simmer with water: Add 1/4 cup water, mix well, cover, and cook on low flame for 20-25 minutes. Check occasionally and add water if needed. Then cook on high flame for 1-2 minutes.
Add fried cashews and capsicum: Add the fried cashew nuts and sautéed capsicum to the mince, mix well.
Add charcoal smoke: Give coal smoke for 2 minutes to infuse smoky flavor.
Garnish and serve: Add chopped fresh coriander and serve hot with naan.