If using dried beans, cook with 3 cups of water, with salt until tender.
Alternatively use a pressure cooker, one whistle and then simmer for 10mins.
Drain and set aside.
For fresh beans, simply rinse underwater.
Heat oil.
Add mustard seeds, stir in ginger garlic paste and asafoetida.
Add turmeric powder and immediately add the beans.
Saute for 3-4 minutes.
Add 1/2 cup of water and cook, so that the seasoning is absorbed by the beans.
Stir occasionally.
Mix in the coriander, cumin powder, salt and jaggery. Cook for another 5-7 minutes.
Finally, add the coconut and tamarind and again cook for 5-7 minutes.
Add water as required.
This can be served as a dry snack or as a curry with gravy.
Garnish with coconut, coriander and chillies.