However, you can substitute eno in place of BOTH the citric acid and baking soda in this recipe. Eno is an antacid powder often mixed with water but also known as a fruit salt in Indian cooking. Simply swap out the quantity of amount of baking soda + citric acid with the amount of eno needed. For example if the recipe calls for 1 teaspoon baking soda and 1 teaspoon citric acid then you would make the recipe with 2 teaspoons of eno.
Use a trivet for steaming. A trivet is a small tool that sits at the bottom of the pan. The cake pan that contains the dhokla batter will sit on top of the trivet. You will add water into the pan under the trivet which creates steam. Use a wide and deep pot/pan with a lid. The pan needs to be wide enough for the cake pan and deep enough to hold water for steam. If you are making multiple dhoklas, you can use a bamboo steamer or a tiered steamer for the dhokla.