In a skillet add 1 tablesppon oil and cook onions, all the vegetables on a medium low heat until done, at the end add coriander/ cilantro and mint leaves.Drain water from the tuna fish. In a bowl  mix the tuna fish, cooked vegetables, all the spices, ginger garlic paste, salt, chickpeas flour (or bread crumbs) and egg whites.Mix it very well.Form the mixture into cakes and fry them on medium  heat in a non stick pan coated with oil( app 5mins on each side)Tastes very good when served hot.Can be served with tomato ketch up or green chutney.