Heat Oil in a wide frying pan. Once it is hot, add mustard seeds, urad dal channa dal, finely chopped green chillies, finely chopped ginger, finely chopped curry leaves and a pinch of asafetida. Fry until all the ingredients turn into nice golden brown.
Add finely chopped onion. Sauce it until soft & translucent.
Add finely chopped carrot, finely chopped beans, boiled green peas and finely chopped green capsicum. Add salt as your taste and stir well.
Cover the pan and cook for 5-7 or until the vegetables becomes soft but looks firm.
Add water. Mix once and allow it to roll boil. Once the water is boiling well, reduce the flame to low, add the cornmeal.
Act quickly and mix the corn meal without forming any lumps. Once the water is absorbed by the cornmeal, reduce the flame, cover the pan and cook for 5 minutes or until the raw smell of cornmeal goes off. At this stage, you can sprinkle some more water if needed to avoid burning.
After 5 minutes, open the lid, add grated coconut, and coriander leaves. Mix well and allow it to cool.
Once the mixture is cool enough to handle, pinch a small portion of the mixture, make dumplings as shown in the picture. Press gently and just enough to hold the shape. Too much pressing of the dumpling gives hard kozhukattais.
Pour water to the steamer or idly pot. Once it starts boiling, keep the steamer inside the pot along with kozhukattais/ dumplings.
Steam it for 5-7 minutes. Once it is steamed, open it , cool down a while and serve It with any of your favorite side dish.