Wash and soak rice and tur dal for 30 minutes.
Soak tamarind in ¼ cup water for 30 minutes.
Crush black pepper using mortar pestle and keep aside.
Chop onion, tomato and garlic. Keep aside.
Heat oil in a pressure cooker.
Add cumin seeds, curry leaves, dry red chillies, pepper powder, choppedgarlic, asafoetida, chopped onion and saute for a minute.
Add chopped tomato and saute till it turns mushy.
Add turmeric powder, red chilli powder, rasam powde rand mix well.
Stir in the tamarind pulp.
Add soaked rice and dal .
Add 4 cups of water and salt as per taste.
Close the lid and pressure cook for 3 whistles. Open the pressure cooker after the pressure releases naturally.
Garnish with chopped coriander leaves.
Serve Dal rasam rice with papad and pickle.