Combine the flour, salt, green chiles, tomato, onion, cilantro, garlic, and ginger. Slowly add the 4 tablespoons of hot oil, rubbing it into the flour. rub the flour and seasonings well for 10 minutes, extracting as much liquid from the seasonings as possible. See if you can form a ball of dough. If you cannot, slowly add 2-4 tablespoons water, or enough to form a very firm dough. Knead well and form a ball.