Mix Chatu along with ½ Tsp. salt, sugar and chopped chilies, chopped onions, lemon juice and mustard oil.Prepare medium tight dough of both Flour along with ½ Tsp. salt and 1 Tbsp. Refined Oil and keep it aside for 15 minutes.Divide the dough into 7-8 round balls or so.Roll out each ball to make a small circle of 2 cm diameter and stuff the circle with 2-3 Tsp. of Chatu/ Sattu mixture.Heat a Tawa/ flat pan. I prefer to use non-stick Pan for preparing Paratha.Roll one stuffed Flour ball with the help of a rolling pin into a round shaped Paratha or flat bread of around 5 cm diameter and put in on the tawa and roast from both side. Apply little vegetable oil/ Ghee on the Paratha and shallow fry from both side till the Chatu Paratha turns golden brown.Prepare Parathas with rest of the staffed balls following the process mentioned.Spread some butter over the Paratha and serve it hot with Achar/ Pickle and Green Chili.We love to have Sattu Paratha/ Chatur Paratha withLal Mirch ka Achar.