Mix together gram flour, yogurt and water taking care there are no lumps. Set it aside.
Heat oil in a deep bottomed vessel and add mustard seeds, asafoetida and cumin seeds and let them splutter.
Add chopped spinach and fry until cooked.
Add turmeric and mix.
Add the yogurt mixture and keep stirring until it boils on high flame. If the mixture is not stirred continuously it might get spoiled.
Add the red chilli powder and keep stirring.
The salt should be added in the end and mixed.
Serve hot with steamed rice.