Soak toor dal for twenty minutes with very little water.
Peel the mango and cut it in small cubes.
Heat refined oil in a pan, strain toor dal and roast it.
Add yellow chilli powder, ginger paste, garlic paste, turmeric powder and water and cook. Add the mangoes, salt and lemon juice (optional).
Take ghee in a pan, add curry leaves, mustard seeds, cumin, red chillies and garlic and fry it.
Add half of the tempering in dal and the rest of the tempering is to be used as garnish.
Cook for few minutes and serve.