Clean or peel and wash the vegetables. Peel onion. Dice everything finely and mix with the corn.
Sift the mizzen, flour, garam masala, coriander, baking soda and chilli into a large bowl. Slowly add 300-320 ml of cold water and mix to a smooth, thick dough. Fold the vegetable mixture into the dough.
Heat the oil in a wide saucepan. (It is hot enough when small bubbles rise from a wooden skewer). Using a second spoon, slide 1 tablespoon of vegetable mixture into the hot fat. Bake only so many pakoras at once that they can swim in the fat without sticking together.
Turn more often and fry for 5-6 minutes. Lift out and let it drip off on kitchen paper. Serve with tomato chutney and yoghurt mint dip.