Preheat the oven to 180 °C. Add salt and yogurt to the refined flour and knead into a soft dough. Rest the dough for some time.
For the filling mix sattu with ginger, garlic, green chillies, coriander leaves, carom seeds, onion seeds, salt, lemon juice and a little water. Divide the dough into lemon sized balls and spread them into small puris with your fingers.
Place a portion of the filling mixture and once again roll into balls. Arrange them on a silicon baking sheet placed on a baking tray. Place in the preheated oven and bake till the top is lightly browned.
Turn over and bake for some more time till the other side is equally browned.
Serve hot. You can drizzle ghee over the littis if you wish.