Ingredients 

1. Toor daal - 2 cups
2. Vegetables - 1 to 1 1/2 tomato, or 1 cucumber, or 1 small squash or any other vegetable
3. Salt - as required
4. Chilli powder - 1/2 to 1 tsp
5. Chilles - 3 to 4
6. Turmeric powder - pinch
7. Tamarind paste - 1 tsp
8. Coriander leaves - few
9. Seasoning - 1 tsp mustard seeds, 1/2 tsp of jeera, pinch of hing,few curry leaves and red chilli pieces

Method: 

1. Put dal in pressure cooker wash and add double the quantity of water.
2. Wash the vegetable , cut into pieces and add to the washed dal.
3. Add turmeric, chilli powder, green chillies close the lid, put the whistle and cook for 3 to 4 whistles.
4. Remove the whistle after pressure is gone open the lid and mash it with back of the spoon.
5. Add salt and tamarind paste (taste and add more salt if required).
6. Put a fry pan on the stove add 2 to 3 spoons of oil. After heated add red chilli pieces, inguva, curry leaves, aavalu, jeera and switch of the stove.
7. Add this to the dal.