Clean both Urad dal and Moong dal, wash the two and soak in water for 4 hours. Drain water from dal and put it in a mixer and grind without water to make a coarse paste. Take outthe grounded dal into a bowl.
Apply oil then smoothen the Idli stand. Pour 2 cups or as much water in the cooker such that the first level of the Idli stand is not immersed in it.
Add salt, ginger, Heeng to the grounded dal and beat the mixture. In case you feel that the mixture is thin then you can add Suji(semolina) to it. Now put eno salt to the mix and beat. The mixture for Dahi Vada is prepared. Take one spoon of the mixture and put it in one level of the Idli stand. Flatten the mixture with wet hands into the shape of Dahi Vada. In this manner, place the structured Dahi Vada mixture in all of the Idli maker’s levels.
Place the Idli stand filled with Dahi Vadas in the cooker and close without placing the cooker’s whistle. Now let the Dahi Vadas cook for 10 minutes in the steam. Turn off the gas. Take out the Idli stand from the cooker, let it cool off then remove the Dahi Vadas and place them o na plate or bowl.
To serve Dahi Vada place 2 Dahi Vadas on a plate Now pour 4 tbsp Dahi, plain salt, black salt, sweet chutney and green Dhaniya chutney. Also sprinkle some red chilli powder, roasted Jeera and Green Dhaniya, your Dahi Vada is now ready to eat.