Slice the Eggplants or Baingan and soak them in salted water until the prep work for the spice mix is done.
In a large plate, mix together red chilli powder, hing, turmeric powder, salt and garam masala powder.
In another large plate, mix together besan or gram flour, rice flour and rava or sooji and keep aside
Drain the water from the eggplants, pat the dry with a kitchen towel and remove excess moisture if any.
In the meanwhile, heat a non stick large pan and add oil.
Now take a slice of eggplant, rub both sides of the eggplant with the spice mix as explained in (2) above. Refer to pic below
Now pat the brinjal on both sides with the coating of besan, gram flour and rice flour as explained in (3) above. Pat excess flour, if any.
Place them carefully on the hot non stick pan, add few drops of oil on the sides and allow it to cook over low flame
Repeat the process with the rest of the Vangi Slices or Eggplants.
Keep turning over the aubergines and pouring few drops of oil at intervals to avoid burning.
Serve piping hot with dal rice or khichdi and dahi.