Take a deep bottomed vessel, add oil and heat. Splutter the remaining mustard seeds and add red chillies. Saute for a while and add the small onions, hing, garlic bulbs and curry leaves and fry.
Add All the Vegetable pieces, turmeric powder and sufficient salt. Fry the contents till oil shows up.
Now add four cups of water, tamarind and jaggary and mix well. Add the green chillies and turmeric powder also and allow to boil well. As the vegetable pieces turn smooth, add black pepper powder and the mustard paste. Stir well and remove the vessel from the stove.
Top the preparation with chopped coriander leaves. Serve hot with rice.