Soak the red gram for 20 minutes.
Clean & cut the beans into small pieces.
Grind the previously soaked dal with red chillies, asafoetida powder, salt and a little water into a coarse paste in a mixer grinder.
Heat oil in a pan.
Add mustard, black gram, bengal gram dal, 1 red chilly & curry leaves.
After 2 minutes, add the cut beans with little water and salt.
Cover the lid & leave it for few minutes until it is cooked.
When the beans are well cooked & have become soft, add the previous dal paste with oil and stir for a few minutes, until the paste gets fully blended with the beans.
Add salt, if reqd.
Season with curry leaves & 1 tsp of coconut oil.
:- Serve hot.