Ensure you wash, peel, and de-seed the melon before use. Chop it into cubes and heat coconut oil in a pan. Add mustard seeds, and when they crackle, add half a spoon of cumin seeds. Once the cumin sizzles, add finely sliced onions and sauté on low heat. Then, add curry leaves and chopped chillies followed by the melon. Season with turmeric powder and salt. Finally, garnish the dish with grated coconut.