Chalka is a latin term for dunce or ignorance toward something. Mainly not smart or not very bright.
Steps to roll roti roundYou want to roll and cook the roti's at the same time, so the rolled dough does not become dry. Make small balls from the dough by rotating between your palms. Make the ball a bit flat. Dip a ball in dry flour, place on the marble or wooden base (chalka) and roll with the rolling pin.