1. Add one teaspoon lemon juice and a pinch of salt to the ginger strips and keep in the refrigerator till use.2. Heat sufficient oil in a kadai till medium hot. Add potato pieces and deep fry till crisp and golden. Drain and place on an absorbent paper.
3. Transfer the potatoes into a big bowl. Add onions, salt, chaat masala, red chilli powder, cumin powder, green chilies, coriander leaves and the remaining lemon juice and mix well.
4. To serve transfer the mixture into a serving bowl, garnish with ginger strips and serve immediately.