Wash the tapioca well, since it grows under the soil, care should be taken while washing.  Remove the skin and remove the vein from the middle and cut it into small pieces. Wash it again and grind it along with red chillies into a paste. Add water and  salt and asafoetida to this, make it a thin batter.

Take a thick bottomed vessel, cook the batter adding coconut oil, stir it frequently till it becomes thick paste like a custard.

Take a plastic sheet, spread it under the sun and drop 1 ladle of the paste and spread it thinly about 5 inch diameter, in circular shape. Dry it under the sun for 2 to 3 days.  By this time the pappad is ready for consumption. Store it in an air tight container.

Heat oil in a kadai and deep fry the pappads, it'll be tasty!!