1. Mix all the masala ingredients in a thali.
2. Meanwhile wash and dry brinjals.
3. Wipe bananas with a clean cloth.
4. Cut both crosswise and stuff the masala. Keep aside.

To Proceed:

1. In a heavy bottomed vessel, put oil, add 1 glass of water.
2. Make the first layer of brinjals, potatoes, kandh and sweet potato.
3. Sprinkle some masala on top.
4. Now add the remaining vegetables and add the masala.
5. Put the vessel on medium heat for about 10-15 minutes.
6. Meanwhile mix all the ingredients of the muthias to make medium soft dough.
7. Make small rolls about 2 inches long and deep fry.
8. Once the vegetables start cooking, add the muthias to the vegetables and keep on simmer.
9. Allow to cook for about 1/2 hour on low flame. Cover the vessel.
10. Decorate with chopped coriander and freshly grated coconut.
11. Serve the undhiya with hot puris.

Note:
Do not stir the vegetables with a spoon.