Ans: This happens generally when you don't wait for the device's indicator showing that it has reached the right temperature for making rotis. Another reason may be that you are not pressing the handle enough or pressing it very hard. Inconsistency in the dough and using a sharp spatula for flipping rotis during the process can also cause this. You may have to visit the service center if these are none of the mistakes you are committing but still get uncooked rotis.