Blend flours, baking soda, cream of tartar, salt and spices. Gradually whisk in water and lemon juice to make a smooth batter the consistency of heavy cream. Set aside. Heat about 3" oil in a large skillet or deep fryer. Dip vegetables in batter to coat. Immerse in hot oil, turning to cook evenly, until golden brown, about 5 minutes. Remove with a slotted spoon and drain on absorbent paper. Cover and place in a warm oven while cooking remaining pakoras. Per serving: 186 cal, 5 g prot, 95 mg sod, 25 g carb, 8 g fat, 0 mg chol, 21 mg calcium