Cook tur dal in pressure cooker.
Remove the stalk of the green leaves and cut them finely. Keep them in salt water for sometime.
Heat oil in apan, add the mustard, asafoetida, turmeric, green chilly and salt. Let cook for sometime.
Add the cooked dal to it. MIx well and let cook on a slow flame for dometime.
Add the tamarind pulp and sambar powder to it. Mix and simmer for for five minutes.
Serve with hot steamed rice.