Whisk the flours, water, all the spices, salt, coriander leaves and about 1 teaspoon of the chaat masala together in a large bowl until it is a thick batter. When the consistency is correct the batter should lazily fall off a spoon.
Add the apple slices to the batter and mix well until the apple is coated evenly in the pakora batter.
Heat the oil for deep-frying in a deep, heavy-based pan over a medium heat to 180°C/350°F, or until a cube of bread sizzles in 30 seconds, then reduce the heat to low. Using your hands, carefully pop 1 apple slice at a time into the oil and deep-fry on either side for 3–4 minutes.
Drain on kitchen paper. Sprinkle with the remaining chaat masala to serve.
Bramble and salt chutney