Step 1Roast black pepper, whole coriander seeds, and cumin seeds. Grind them together.
Step 2Pour oil into the wok; add mustard, whole dry red chilli, curry leaves, and turmeric powder, and then pour it into the tomato mixture. Add salt to it. Mix.
Step 3Boil raw mangoes in water. When the mango is cooked, squeeze out the pulp.
Step 4Boil the arhar dal. Boil tomatoes with ginger, garlic, and rasam powder, and strain it.
Step 5Add raw mango puree and boiled arhar dal to it.