This is a traditional South Indian tomato soup. It is dense with spices and can be made as hot as you wish.
Beware!!! The smoke from blackening the chilies is intense. Do this outdoors or with open windows, or with lots of fans. This can get to your lungs and eyes.
The number of dried red chilies you use controls the resultant heat. Experiment to get the hotness you want.
Straining the solids out of the soup is optional, traditionally the soup is not strained.