Heat oil and saute garlic and then add deseeded but chopped red peppers.
After 30 secs add chopped tomatoes and cook on medium flame for 1 minute. You can also cover and cook it for one minute.
Next add salt, sugar and rec chilli and keep cooking till tomatoes are cooked well and become musky and paste like in some 5 - 7 minutes of cooking.
Add black pepper and mix well and once the tomato paste is uniform , i.e. doesn't show a layer of water switch off the flame and taste the mixture to adjust the seasonings as per your taste.
Now make a fine paste and store it in a air tight glass container in refrigerator.