Heat oil in a pan. Add cumin seeds, once they crackle, add green chillies. Once the chillies turn goldenish, add the potato cubes.

Add salt and mix well. Cook on medium occasionally tossing. Add chilli powder and mix well. Cook for 10 minutes or till the potatoes are crispy from outside but tender inside, take the pan off from the heat.

Add the dash of lemon juice and mix well. Ready to serve.