Steam the fruits, cool, de-skin and remove the pulp.
Pass it through a blender for a smooth texture.
Grind coconut, green chillies and turmeric to a fine paste.
Beat the curd well.
Mix everything together in a pan.
Heat the mixture on medium heat.
As soon as it starts frothing, remove from the flame.
Add salt and stir continuously for a few mins.
Heat oil in a small pan.
Splutter mustard seeds and fenugreek seeds.
Add curry leaves and saute for a second.
Pour this into the mango mixture.
:- Serve with rice.