Pappada vada is a snack item made in Kerala. Actually, if you tell the Papad makers, they will make separate papad for this. In case you don't get that, you can use the normal papad for making this snack item.
In any of the small hotels and thattu kada (street shops), you will get this item to taste. Papad is dipped in the rice flour batter and fried, it is a simple and easy dish, provided you have papad at home.