Achaari Alu

Fry the potatoes until tender. Remove from the pan. Fry the onion until golden. Add the ginger garlic paste. Add the turmeric, the water, and lemon juice. Add the chili powder salt and sugar and lLet it cook for a couple seconds then add the potatoes back in. Let the potatoes absorb the water and get a little dry then remove from the fire. In a separate pan, heat the oil. Add the mustard seeds, cumin seeds and Nigella seeds. Add the red chilies unbroken. When the mustard seeds sputter, immediately pour over the potatoes. Mix and serve.