boil water add the flour & rest of the ingredients(salt n cumin) and mix swiftly with a wodden spoon so that there are no lumps.The consistence should be that of chapati dough.If the dough looks liquefied or pasty, add up little rice powder to tighten it. Cover up with a tight lid and allow it cook for two minutes. Turn off the heat and keep it covered for five more minutes.Wet the hands with cold water & divide dough into three parts. This has to be done when dough is still warm rather hot.One of the three parts has to be tempered by rolling on a slab with wet hands a few number of times, so that it softens without having any lumps.Now roll out as you would do a chapati using rolling pin.Fry on the hot pan on the both sides, until golden. Use of oil while frying is optional. Frying takes couple of minutes depending on the density of the rolled rottis.