Add Chopped tomatoes in a blender, puree it and set it aside.
Soak Tamarind in 1/2 Cup of Hot Water and set it aside. When the mixture is warm, Extract the pulp.
Pressure Cook Tuval Dal. Mash it / Whisk it well with 1 1/2 Cup of Warm Water.
Heat Ghee in a Pan, add the seasoning ingredients. Once the Mustard Seeds begins to splutter, add the pureed Tomatoes, tomato pulp extract, turmeric powder, rasam powder, pepper powder and salt to taste.
Allow this mixture to come to a rolling boil and then simmer.
Add the prepared the Tuvar Dal mix to the pan, stir well.
Check for seasoning and add more salt, rasam powder if needed.
If you find Rasam/ Charu too thick, add more water and simmer the rasam until it bubbles.
Switch of the flame. Garnish with finely chopped coriander leaves.
If you like a bit more of the tang, add a squeeze of Lemon Juice. If Tuvar Dal is not available, you can give use Red Lentils!For making your Rasam Powder Instantly, how about checking out Aarthi's Rasam Powder