Put the vegetables, green chillies, shallots and salt into the cooked dal. Add the heated powders and tamarind juice.
Add enough water(remember not to add more water). 2 whistles are enough for the vegetables to cook well.
Heat oil in a pan. Splutter fenugreek seeds, mustard, vattal mulaku and curry leaves. Put into the curry. Garnish with coriander leaves(optional). Nadan sambar is ready.
Thank you.. dish came out well. I added some jaggery too..