firstly, in a large kadai heat, 2 tsp oil and splutter tempering.
add 4 shallots, 2 chilli and saute for a minute till it changes colour.
further, add 1 tomato and continue to cook.
now add mixed vegetables and saute for 2 minutes.
further, add ¼ tsp turmeric, ½ tsp jaggery, 1 tsp salt and 1 cup water.
mix well, cover and boil for 10 minutes.
now add ¾ cup tamarind extract and mix well.
cover and boil for 10 minutes.
additionally, add 1 cup toor dal, water and mix well.
add in 4 tsp of prepared sambar powder.
boil for a minute, until the flavours are well absorbed.
add in 2 tbsp coriander leaves and mix well.
finally, enjoy idli sambar with hot steamed idli.