In a large mixing bowl, combine the gram flour, potatoes, onions, chiles, turmeric, chili powder, ground coriander, cumin, coriander leaves, and salt. Stir to combine and coat the vegetables well.
Add water to the mixture a little at a time until the flour sticks to the vegetables. Don't add too much so that it is runny but more of a moist coating on the vegetables. If needed, add additional rice flour to get the correct texture.
In a deep skillet or saucepan, heat oil until piping hot or 350°F.
Scoop spoons of the mixture into the hot oil and cook for 1 to 2 minutes or until golden brown and cooked through.
Serve with a bit of chutney or ketchup for dipping.
Notes
If the mixture feels a bit runny, you can add extra gram flour to bring it to the right consistency.