Take 1 cup of sabudana/ sago in a bowl.
Wash it well 2 to 3 times.
After washing add 3/4 cup of water. or upto the level of Sabudana. Make sure you dont add extra water, it will make the sabudana sticky.
Soak it for 5 to 6 hours. In between check the sabudana, if required you can put little more water.
After 6 hours.
Add 1/2 cup of Boiled & chopped potato.
Also add 1/2 cup of coarsely powdered roasted peanut.
Then add 1/2 tsp grated ginger and 1 tsp of chopped green chilli.
Next add 1 tsp of chopped curry leaves and 1 tsp of jeera.
Add rock salt to taste.
Then add 1 tsp of lemon juice.
Squeeze and mix all the ingredients to form a dough.
Take a ball sized dough or some portion of the mixture in your hands and shape them into a flat round vada or patty.
Do this till all the mixture is utilized.
Deep fry the vada's in oil. Once the oil is hot, reduce the flame to medium.
When one side is light golden, Flip it over and fry on both sides.
Continue to fry turning over a couple of times till the vada are uniformly golden and crisp.
Take out from the oil and place them on kitchen towels to remove excess oil.
Fry rest of the vada's similar way & ready to serve.