Heat the oil in a pressure cooker over medium heat and add the jeera, curry leaves, rai. When the seeds begin to pop, add the potatoes, haldi, chilly powder, water and cook 3-4 whistles over medium heat.
Pic: Kind courtesy Sonia Goyal/Wikimedia Commons
Method, continued
Open up the cooker and add the sugar, salt, coconut.
Mix well and bring to boil once more and serve hot with puris; Serves 2-3.