1. In a large pot on the stove, heat the ghee or coconut oil. Add onion, garlic, and ginger and cook over medium heat until soft and fragrant, 6-8 minutes.
2. Add the curry powder and the red chile powder. Stir well and cook about 1-2 minutes more.
3. Add the rutabagas, sweet potato, and the peppers. Cook for 2-3 more minutes, then add the salt and the jaggery. Stir so everything is mixed well.
4. Add the lentil, the broth, and the water. Bring to a boil, and then reduce the heat to a simmer. Cook for about an hour, maybe a little more, until everything is tender and cooked through.
5. Remove from the heat and allow to cool, then transfer to a suitable container and refrigerate until cold. You can puree the soup, if you like, or serve as is, topped with plain yogurt and minced cilantro.