Take the atta and make a well in middle. Add salt and milk. Mix well. Then add water to get a real soft dough. It should not be very stiff but rather loose dough.
Keep it aside for 20 to 30 mins. Make small balls from the dough. Roll out dusting with atta in between.
Heat the tawa. Once its hot, sim it roast the rolled out pulkas on the tawa. Cook on one side, turn it back. Then take the grill and put it on direct high flame. The trick here is to put the side that was already cooked on the flame to get the rise in the pulka.