Take the tomato pieces in a cooking pot. Add 3 teacups water and a small asafoetida piece. Boil and cook till done.
While it cooks, in a blender bowl take 2 tbsp coriander seeds, 10 nos peppercorns and 1/4 tsp cumin seeds. Powder all 3 in the blender till finely powdered.
To this, add 4 garlic cloves, 1/4 tsp chilly powder and 1/4 tsp turmeric powder. Spin till the garlic blends well.
Next add 1/4 teacup water to the blender. Blend well till it becomes a smooth watery mixture.
Add the above masala to the boiling tomato. Add salt as required.
Add the tamarind juice to the pot.
Add 2 tbsp coriander leaves that have been cut very small.
Let it all boil. Reduce flame and cook for 5 minutes.
For seasoning add 2 tbsp sunflower oil to a seasoning pan and splutter mustard seeds. Add 2 dry red chillies(broken into 2 pieces).
Add shallots and sautT till shallots become brown color. Add curry leaves.
Add the above seasoning to the Rasam.
Your tasty rasam is ready to be served along with hot hot ricea