in a mixer jar grind the raw sabudana and make a fine powder.
Take out te sabudana powder in a bowl.
wash and peel the potatoes and chop into small pieces and then grind in the mixer jar and make a fine smooth paste, no need to add water while grinding.
Now finely chop the green chilies or you can use green chili paste and grate the ginger. you can adjust the quantity of green chilies as per your tatse.
Now add the potato paste in the sabudana powder and mix.
Add green chilies, ginger, salt, cumin, sugar , fresh coriander, crushed peanuts and lemon juice in the mixture and mix.
Instead of lemon juice you can use mango powder and skip what ever you don't consume in fast.
Now add 1/2 cup water in the mixture and cover and let it rest for 5 -10 minutes so the sabudana soak the water and swell up.
Now make small lemon size balls from the mixture and keep aside.
Heat oil in a deep wide pan and add the balls in hot oil.
let them cook for 2 minute's , till then don't touch the balls or stir with the spatula.
when they get cooked slightly and hold the shape then stir gently and turn the sides and now lower the heat and cook on medium heat.
Let them cook till golden and crisp and then drain out on a paper napkin.
Serve hot with vrat ki green chutney or any tangy dip of your choice.