Sambar Using Store Bought Sambar Powder recipes

Name: Sambar Using Store Bought Sambar Powder recipes
Ingredients: ½ cup split yellow lentils (toor dal), rinsed; water; salt; 2 tablespoons + 1 teaspoon oil; ¼ teaspoon turmeric powder; 3 ½ cups mixed vegetable chunks; 15 fresh curry leaves, divided; 3 green chilies, slit into half lengthwise; 3 okra, trimmed and halved; 1 medium tomato, chopped into chunks; 3 tablespoons sambar masala powder, I used Eastern Brahmin Sambar Powder; 3 teaspoons tamarind paste; ½ teaspoon asafetida powder (hing); ½ teaspoon jaggery (optional); 1 teaspoon black mustard seeds; 5 dry red chilies, broken into halves; 6 small shallots, peeled