I make this cornmeal dhokla quite often instead of rava dhokla. It has the same texture as rava dhokla only it is gluten free.
Allergic to wheat or not, this cornmeal dhokla is liked by all.
Just replace cornmeal for semolina and use the rest of the same ingredients and same procedure to prepare as rava dhokla.
Sometimes I add grated carrot/cucumber / zucchini or green peas / corn thus giving it a slight twist.