Wash the sambar dal, add a pinch of turmeric and boil to a smooth paste.
up a kadai, add oil, crackle mustard seed, chilli and curry leaf.
Add all diced vegetables into the mixture, sautéfor a while. Add all masalas excepet asefotida
Add water and let it get boil until the vegetables are smooth. Add the cooked dal,boil until all the forth comes on top.
Skim the forth,add thamrind water,sprinkle with asafoetida and check salt.