Soak Poha in enough water to cover for 5 minutes, and drain by squeezing the water from it.
Heat oil in a pan, add mustard seeds, black gram dal, turmeric powder, and slit green chilly.
When the mustard seeds splutter, add onion and potato and sauté for 5 minutes.
Add salt, little bit of water and cover the pan with a lid.
After 5 minutes remove the lid, add poha and sauté for another 5 minutes.
Turn off the stove and add lemon juice into it.
Garnish with coriander leaves.
Now the dish is ready to serve...