Salt - 1 tsp flat (crystal salt) or as required. (If using table salt use less)
Plastic sheet or banana leaf for making vadas
Oil for deep frying.
Soak Urad dal along with 1/2 tsp rice and 1/2 tsp fried gram for half an hour and refrigerate it for 1 hour.
Drain the water and grind it with green chilies and salt to a smooth and soft batter without adding water. If you need you can sprinkle very little water and grind and It is better to use the wet grinder for grinding. Your batter is now ready. (tips- to find out if your batter is ready, wet your hands, take a small ball of batter - the batter should not stick to your hands)
Heat the oil in a deep bottomed kadai. Once the oil is heated, reduce the flame to medium.
Then take a bowl of water and wet your fingers, take a lemon sized vada batter, flatten it slightly on a plastic sheet or back of the banana leaf. Make a hole in the middle and slowly put the shaped dough to your hands and slip it into the hot oil very gently.
Fry until it turns to a golden brown on both sides. Remove it from oil and place it in a colander or paper towel to drain excess oil.
Repeat these steps for the rest of the dough. You can fry 3-4 vadas at a time and fry it depending on the size of your kadai and the amount of oil used in it.