In a large bowl, add rava/suji (semolina), yogurt, salt, and water. Mix.
Now add ENO. Let this batter rest for 20 minutes.
In the meantime, chop onions, tomatoes, cilantro, and green chilies.
Make cilantro chutney - I winged it and added some tadka. I basically made my Cilantro Chutney, added some yogurt, and made a tadka (tempering) of oil, mustard seeds, curry leaves, and dry red chilies. I don't have a recipe for this, just winged it. Of course, you can use store-bought too or also make coconut chutney.
After 20 minutes, your batter will look like this. The rava absorbs all the water.
You need to add more water for a consistency that is still thick, but you can still pour. Add 2 tbsp of water at a time and keep adding water until you have a pouring consistency, but is still thick. I will estimate you will need roughly 1/4 cup to 1/2 cup of water - but start with less.
This is what you should have.