Mix the flours and salt in a bowl.
Add ghee and rub it into the flour.
Add milk little at a time and make a soft dough. It should be as soft as a roti dough.
Cover it with a lid and let it rest for 30 minutes.
Knead the dough till it appears smooth. I knead it for 5 minutes.
If the dough sticks too much then you may need to add a little bit of flour. The dough is soft but not sticky.
Heat a tawa or frying pan over medium heat.
Divide the dough into 6 equal parts.
Roll each dough into a ball.
Roll the dough ball in the millet flour.
Pat it flat on the rolling board.
Using a rolling pin roll it into a circle of about 5-6 inches in diameter very gently.
Flip the board with the rolled rotlo onto your palm with fingers spread out.
Flip the rotlo onto the hot tawa.
Let it cook for 2-3 minutes.
Flip and let it cook for 2-3 minutes.
Put the rotlo over the naked flame and let it puff up.
If it doesn't, just flip it over and let it roast for a few seconds.
Put the rotlo on a plate and smear it with ghee.
Repeat the above steps with the remaining dough.
Serve rotla with your favorite curry.