Peel the required vegetables & chop them all uniformly into 2 inch long strips. Add raw banana pieces to water to prevent browning.
To a blender, add in grated coconut, green chillies & cumin seeds. Add required water and grind to a paste.
To a wide pan/kadai, add in all the vegetables. Make sure to place the vegetables that take More time to cook at the bottom of the pan.
Add required salt and 2 cups water.
Cover and cook the veggies for 7 minutes or till they are cooked well.
Now, add prepared coconut masala paste and boil for 5 minutes.
Turn off the heat. Now, add yoghurt and a few curry leaves. Mix well.