Boil the potatoes in a pressure cooker till cooked well. When done dice the potatoes.Roast the sesame seeds till starts popping. Pond the roasted sesame seeds in a mortar and pestle till grounded nicely. Slit 4 green chillies with seeds on. Add the juice of one lemon and mix well. Garnish it with green coriander.

Heat the cauldron or a frying pan. When hot add two table spoon mustard oil and let it smoke. When it is smoking hot put the flame in medium and add slit green chillies,sliced onions, turmeric, chilli powder and saute for a while. Then add the diced boiled potatoes and start sauteing.Add salt too taste and add the pounded sesame seed powder. And see that the potatoes are well quoted.