Wash and soak toor dal for at least one hour.
Prepare the bhindi by cutting heads and tails and then making thin slices.
Heat 2 -3 tbsp oil.
Add mustard, asafoetida and a pinch of asafoetida
Add the whole red chillies and immediately add the soaked and drained toor dal.
Sauté for a minute or two.
Add the bhindi, salt and turmeric powder.
Sauté for a minute so that the spices are mixed and the bhindi is well coated with oil.
Simmer the flame and cover the pan using a rimmed lid or a thali.
Pour 1/2 cup water on the lid.
Let the bhindi cook for a few minutes.
Remove the lid carefully and stir the bhindi.
If cooked add coriander powder, chilly powder and lemon juice.
Sauté on full for a few minutes.
If the bhindi is not cooked, place the lid back and let them cook before adding spices.