In a mixing bowl, combine mashed potatoes with rajgira flour, green chilies, ginger, cumin powder, sendha namak, lime juice, and chopped coriander. Mix well to form a soft dough.
Divide the mixture into equal portions, make balls, then flatten each ball and shape into medium-sized tikkis.
Heat a non-stick pan with oil and shallow fry the tikkis until golden brown and crisp on both sides. Remove and set aside.
Whisk yogurt in a bowl until smooth with salt and little water, yogurt mix should be pourable but thick.
On a serving plate, spread a layer of whisked yogurt. Place 2-3 hot tikkis on top.
Drizzle green chutney and sweet chutney over the tikkis.
Sprinkle fried peanuts and farali potato chiwda generously.
Finish with a good sprinkle of the prepared spice mix and serve immediately.