Combine corn, green chillies , ginger and curd .Blend it in a mixer to a smooth paste .
Transfer corn chilli paste to a big bowl.To that add rava .Mix well such that no lumps are formed .
Add salt ,turmeric and 1/2 cup of water . Mix well . Corn rava dhokla batter is ready.
Next,keep a pressure cooker / steamer for heating with enough water in the bottom.
Grease a deep,flat and wide container with oil (I used the cooker container ). Also dust it little with Eno.
When the water in the steamer starts boiling, add the eno and lime juice to the batter and mix gently, you will see bubbles coming out.
Then immediately pour the batter to the container until it is 2/3 full. Remember after the dhoklas are steamed they will puff up.Place the container inside the steamer .Steam cook for 15- 20 mins or till the dhoklas are cooked .( Check pricking with knife or toothpick ; it should come clean ).
Cool slightly ,de mould and cut into squares .
Prepare tempering. When the oil is hot , add mustard seeds.When they splutter, add hing , mix well and switch off.Pour this tempering on the dhokla , garnish with corn and coriander leaves .
That's it.. relish the corn rava dhokla with green chutney or tomato ketchup.