Cut the tomatoes, carrot and big onions into big pieces.
Sauté the butter and flour in a thick bottom vessel on a low flame.
Add the vegetables before the butter melts into ghee.
Cook the vegetables very well with 3 cups of water.
Make it into a paste by stirring well and sieve it. Heat
the contents in a flame and add tomato sauce, salt and sugar to it.
Now the soup is ready to serve.