Wipe the vegetables dry with a cloth and dust with flour, shake off excess and keep aside.
Mix the cornflour, salt, pepper, garlic paste and add enough water to make into a pouring consistency - when you drop it from a spoon it should pour in a continuous line.
Heat the oil, dip vegetables into the batter and place into the hot oil. Turn, fry for a few seconds and remove from oil and keep aside on an absorbent paper.
Just before serving, fry once again over high heat, drain on absorbent paper and serve.