Clean the sugar baby mangoes, peel the skin and squeeze the mangoes with little water. Keep this aside for further use.
Prepare the coconut mustard paste: Grind fresh coconut, red chilies and mustard seeds in fine paste. Keep this aside.
Now add jaggery and salt as per taste, mix well. Now add the coconut mustard paste, curd and mix well.
Kadu mavina hannu sasive is ready for seasoning: Heat coconut oil on low flame, fry cumin seeds. Add curry leaves and asafoetida. Fry well. Pour this on the prepared sasive. Mix well.
Serve this with hot rice and some coconut oil if required for flavor.