Grate the coconut and make 1 cup of thick milk and 2 cups of thin coconut milk. Peel ginger and garlic. In a mixie, grind the garlic, ginger, pepper, jeera, poppy seeds and curry leaves into a fine paste with 2 tbs. of water. Chop the onions and green chillies finely. Cut mutton into 1 inch cubes. Roast channa on a tava for 3 minutes. In a saucepan, heat water and the thin coconut milk. Add mutton and channa. Bring to a boil, lower the heat and simmer for 30 minutes on a low flame. Spoon the mutton onto a plate and strain the soup into a fresh pot. Ensure that the channa strains into the soup as a thick liquid. In a frying pan, heat oil. Add onions, curry leaves and fry for 5 minutes. Lower the heat and add mutton. Fry for 5 minutes and add to the soup. Bring to a boil, add salt and simmer