Mix both the dry flours in a mixing bowl
Now, add the lukewarm water (I needed a little less than ½ cup) gradually in the flour to knead a soft, smooth dough. Keep this covered for 15 mins
Divide the dough into 5 equal spheres
Dust your work surface with some dry flour and roll a sphere out, flat and equally thin/thick from all sides
Heat the skillet/tawa, once it is moderately hot, place the rolled out roti on it. Let it cook for some 30-40 seconds
And then flip it, cook until you see bubbles appear and the flip again
When you see brown spots on your chapati, remove it using tongs from the tawa
And place it on an open, medium flame. Let it swell up completely on side and then turn it so that the other side also puffs up
Apply some ghee on them and serve the ragi (millet) rotis/chapati hot, with you favourite side dish!