In a medium bowl combine mango purée, raw mango purée, buttermilk and chickpea flour.
Blend them well, strain the mixture to get a lump-free mix.
Mix the turmeric, red chilly powder, asafoetida and salt.
In a skillet heat 1 tbsp oil.
Add cumin seeds, sauté till they crackle.
Add mustard seeds, fenugreek seeds, bay leaf and green chillies.
Add to the mango buttermilk mix and bring it to a boil.
Simmer and cook for 8-10 minutes.
Add the boondi.
Heat the remaining 1 tsp oil.
Add ginger, dried red chillies and add to the kadhi.
Sprinkle coriander leaves.