1 Pressure cook or cook dal with enough water and a pinch of turmeric in a pan. Mash the cooked dal well.
2 Soak tamarind in water for 10 minutes and extract the pulp and strain.
3 Add the tamarind pulp to the dal with salt to taste. Allow to simmer on a low flame for sometime.
4 Heat 1 tsp oil and season mustard. Add chopped onions, green chillies, tomato and Eastern Sambar Masala and fry it for 2 seconds. Then mix the ingredients to the sambar and allow it to boil for 10 minutes.
5 Remove from fire and serve hot. Garnish with chopped coriander leaves and curry leaves.
Note : Vegetables like drumstick, brinjal, potato etc. can be added to sambar.