In a big pot or kadhai or cooker. Add 1-2 glasses of water.
Cover with the plate and boil the water.
Grease the plate which has corners or dhokla plate with the oil.
In the batter add eno powder and add 1 tbsp water and mix it well. And make sure that you are doing it at the speed.
Put the batter on the greased plate. And gently tap the plate to the surface so that the batter spread evenly.
Place the plate inside the pot carefully and cover it with the plate.
And on the slow gas flame steam it for 15-20 minutes. Do not remove the plate in between.
Now, insert the fork or knife into it for checking that it is steamed perfectly or not. If it does not come out clean then again steam it for 2-3 minutes.