in a kadai take 1 cup tamarind extract, ½ tsp turmeric, 1 tsp jaggery, 2 green chilli and few curry leaves.
also, add vegetables and 1 tsp salt.
cover and boil for 10 minutes.
further, add 1 cup water and 1½ cup toor dal.
boil the mixture well.
now add 3 tbsp of prepared sambar powder and mix well.
boil for 2 minutes or till flavours of sambar powder is absorbed completely.
pour the tempering over sambar.
also, add 2 tbsp coriander leaves and mix well.
finally, hotel sambar is ready to serve along with hot steamed rice.