Rinse daal until water runs somewhat clear. Soak daal in water for 30 minutes.
Boil 5 cups of water, add turmeric powder and toor daal. Cook for 20-30 minutes or until the toor daal is soft. You can add more water if needed. If you have a pressure cooker, then you can cook the daal in there.
Heat oil in a small sauce pan, add cumin seeds and let them sizzle for 20-30 seconds. Add to cooked daal.
Add red chili powder, salt, lemon juice – mix well and let it simmer for about 5 minutes. Stir occasionally.