Make buttermilk by combining water and curd. The ratio of the two depends on the sourness of curd. My curd wasn't sour at all, so I did not add any water. Combine buttermilk and rotli, soak for 10 min and then grind along with green chillies, ginger and garlic to smooth paste without water.

Add sooji and keep aside for 5-10 mins to allow sooji soak water. Next add salt, oil and turmeric powder. Mix well.

Prepare the steamer and put on stove. Grease the dhokla plate. By the the water in the steamer should be boiling. Add eno to our batter. Combine gently in a single direction until the batter is evenly puffed. If you want to make dhokla in batches, add eno into batches as well. Pour the batter in dhokla plate. Sprinkle some red chilli powder on it.

Put the plate in the steamer. Cover the lid with a cloth to catch steam dews. Place it on the steamer and cook on medium heat for 10-12 mins. Or until dhokla is cooked. Remove the plate from the steamer and let it cool for 5 min.

Heat oil for tampering. Crackle mustard. Turn off the stove if the oil is too hot. Then add jeera and wait till it's golden brown. Next, add curry leaves and chillies. Fry for a minute or two.

Cut dhokla. Then pour the tampering on it. Serve with green chutney.

For green chutney, grind all the ingredients to smooth paste using some water.