# Roast the 
flour with oil, until it turns into pink.
# Add finely sliced 
onion and 
pepper on it, and roast until the 
onion turns into transparent.
# Add grated 
tomatoes and 
tomato paste, and cook 5 more minutes.
# Finally add 
milk and gravy, drizzle salt and boil for once.
# Drain the cooked soup to get it smooth.
# Cook for a while after draining and serve hot.