Cut the vegetables (carrot, green bean, cabbage, cauliflower, ladies finger, leek ) to the size of your choice.
In a pressure cooker add the chopped vegetables (carrot, green bean, cabbage, cauliflower, ladies finger, leek), tomato, soaked chick pea, soaked green gram, pigeon pea, turmeric powder, black pepper, cumin seeds and salt to taste. Now add water as needed and pressure cook for 5 whistle then remove from heat (stove) and keep it aside for the pressure is released completely.
In a pan melt butter. Now add chopped onion, curry leaf and sauté until the onion turn translucent (golden brown)
Now add the pressure cooked vegetables. Add water if needed and bring to boil.
Now add the vegetable bouillon cube and cook until the cube dissolve in the soup.
Now add the dissolved corn flour. Boil for couple of minutes until the soup gets thick and serve hot.