To the chopped manja pieces add turmeric and salt and keep it aside for half an hour atleast and then squeeze it to take out the juices from it. And it is ready to cook now. Make a paste of Mustard seeds, garlic and green chili together. In a vessel boil the manja (after extracting the juices) with little salt, turmeric and water and let it cook. When it cooked strain the water out. In a separate vessel boil the potatoes and arby together with little salt. Heat a vessel with the oil. When it is hot, add the phutan and dry chili to this and add the chopped tamatoes to the tadka. When the tomatoes are half cooked add the mustard paste to this. Add salt and turmeric to this cook it for 5/10 minutes. Does not have to cook till it leaves oil. Add the cooked manja, cooked potatoes and arby to this mix it together and cook it for some time again in simmer (5/6 minutes).When it is done add badi to this and mix it together It is ready to serve with plain rice and dali.