In a wide bowl, take the flours along with salt, baking soda, curds and mix well.
Slowly add warm water to knead to a soft, pliable dough. Knead well until you get a smooth dough.
Apply oil over it and let it rest for 10 minutes.
Heat a kadai with oil for deep frying.
Knead the dough again and divide it into equal balls.
Dust well and roll into thin 6 inch discs.
When the oil is hot, gently slide the discs and press on top for the poori to puff up.
Cook on both sides and drain on a kitchen towel.
Serve with a side dish of your choice.
I served it with White Kurma and Xacuti Chana Masala.