Heat oil in a kadaai. add onions, green chilli, curry leaves , coriander , salt and fry till light golden.
Now add raagi flour and saute till it mixes well .
Now remove of the flame and let the mixer cool down ,and now add required amount of water to make a light tight dough.
Now make even ball of the dough.
Heat a tawa (oil it slightly) and just place a single ball on it and now just press the ball so that it will get flatten ,do not flat much... just flat for about 1/4th of an inch .
You can see the adai getting cooked the color will change.
Now flip over and cook on other side too add some oil on its circumference.
Transfer to a serving plate and serve hot.
This will taste gud as it is, no side dish required