Saute cumin seeds,chopped onion and small piece of gratedginger and add boiled potato and salt as per taste,turmeric powder-a pinch,black pepper powder-1/2teaspoon,ajwain and add grated carrot-1and mix well. Now take a ball fromthewheat flour dough and roll it with rolling pin. Now spread potato carrot mixture over it and fold it from four sides and again roll it gently. Now roast it with ghee from both the sides on tawa and serve hot.