In a deep saucepan heat oil. Shallow fry shallots, green chillies, ginger and add chopped. When its well cooked remove from the heat and keep aside. Now blend the coconut, mustard seeds & curd (Please make sure that it should not be fully grinded). Mix this with the cooked karela.
Heat oil. Add mustard seeds. When it starts spluttering add red chilli & curry leaves. Add the seasoning to your dish.