Take all tomatoes cut them half and put them in water in pressure cooker,add salt to taste, add black pepper, add red chilli powder and cornflour

Cover it with cooker lid and cook it till 1st whistle.

Till the steam of cooker ends you should not open it,now the help of strainer strain the tomato soup.

Now put it in a bowl or coffee mug and the put chopped onions and coriander leaves and put butter in it

Now your tomato soup is ready to serve it.