In a heavy bottom pan add the ragi flour and water, mix well without any lumps. Take it to the stove, cook in a low flame, keep stirring , the water will be absorbed and it will start turning to a thick porridge. Turn off the heat when it comes together as thick-gooey mass.Let it cool for 10 minutes.
Take the cooked porridge in a blender jar, add yogurt,½ Cup buttermilk, green chili, curry leaves, coriander leaves and salt.
Blend together, to get a smooth liquid, If you feel it is too thick, add another ½ Cup of Buttermilk and Blend it frothy.
Serve it tall glasses and call it a smoothie, or as a porridge in bowl and get your very own froth mustache!!! :)