Take a heavy bottomed pan. Add water as per the requirement and place the chicken pieces into the water.
Boil the chicken pieces till it gets cooked completely or for about 8-10 minutes on medium flame.
Now, take a pressure cooker and boil all the chopped vegetables till 2-3 whistles.
Meanwhile, strain the chicken and keep aside the chicken stock (Broth). Remove the chicken flesh from bones if any and cut it into smaller pieces.
Also take a whole egg and keep it ready to be used.
After the veggies are cooked and the pressure is being released naturally from the cooker, pour the chicken pieces, the chicken stock and all the veggies in a heavy pan. Add some salt, and black pepper powder. Mix all well. Let it cook for 2 minutes.
Now, beat the egg and pour it gradually into the soup. Make sure to mix the egg with the help of a ladle continuously while adding. It will thicken the soup naturally and will form noodle like structures in the soup.
Cook the soup for another 2-3 minutes and then turn off the flame. Garnish it with some mint leaves or freshly chopped coriander leaves.