First, cook potato with enough water, and salt for  2 whistles

Transfer to a colander and run cold water to prevent further cooking

drain the water completely and cool

Peel and crumble

Add oil and heat on a medium flame

When the oil turns hot, add cashews, mustard seeds, and  chana dal; let them splutter

Furthermore add green chilli, curry leaves, and ginger; roast well

Add salt and quickly mix

Furthermore, add potatoes and turn to a low flame

Mix and turn off the stove

Finally add coriander leaves, coconut, and lemon juice; mix and cool