For koftas : Wash the potatoes. Cut in to half and boilin a cooker for 2 whistle. Once it is done. Keep aside. Cool it. Open the lid of the cooker. Keep the potatoes in cold water. Peel the skin of the potatoes. In a bowl. Combine all the dry ingrdients, boiled potato, salt, gram flour, corn flour and salt. Mix....well. Make a smooth dough. From the dough. Make any kofta's shape.