Wash and cut potatoes into two. Take water enough to immerse the potatoes in a small pressure cooker.
Pressure cook the potatoes for 3 whistles. Cool down, peel off the skin.
Cut the potatoes into quarters.
Heat oil in pan, once hot, splutter cumin seeds taking care not to burn.
Add chopped ginger, slit green chilli. Give it a stir.
Add cut potatoes, turmeric and required salt. Mix and cook for a minute.
Add coriander leaves, lemon juice and cook for 2 more mins stirring occasionally in between. Switch off the heat.