Mix curd and water keep it a side.
Take a bowl add maida,rice flour,salt,soda mix well then add buttermilk make it into a vada batter consistancy.
Now add cumin seeds,coconut pices finely chopped, green chillis chopped mix well keep a side for 1 hr.
Heat oil to fry, make into small round bondas and put in to the oil, cook in a very slow flame.
Remove once it is golden brown colour.
Serve it with coconut chutney