Davva perugu pachchadi/Banana stem in curd

Banana stem or trunk normally called as Davva or Duta is really good for health. It is low in calories and rich in fiber. This is good for kidneys. 
To make any recipe with banana stem or davva we need to have lot of patience as we cannot cut them easily. First we have to cut them circularly and take out the extra fiber. 
To take out the extra fiber: we need to take it on to the right index finger and make circular movement of the finger while holding the fiber. This will remove the fiber. Repeat this with the entire pieces of  stem.
Collect three or four such pieces and chop them or cut them into small cubes. Once cutting is over put them in thin buttermilk, so that it will retain its colour. For cutting assistance follow the pictures.

Ingredients:

Banana stem or Arati Davva- 5 inches
Salt - to taste
Curd-5tbsp
Oil-1tbsp
Mustard seeds-2tsp
Cumin seeds-1tsp
Urad dal-1tsp
Red chillies-2
Green chillies-3
Curry leaves-5 or 6
Asafoetida-1tsp

Procedure:

Cut the banana stem into small cubes.
Chop green chillies.
Add them to the stem pieces, Add curd to it.
Heat oil in a kadai put mustard seeds, cumin seeds, urad dal, red chillies, curry leaves and asafoetida. Once they start spluttering add this tadka to the above banana stem pieces and mix well. 
This can taken as it is or serve with rotis.