Sambar (Spicy Lentil and Vegetable Stew)

Combine water, toor dal, onion, tomato, pumpkin, okra, peas, and radishes in a pot. Bring to a boil, reduce heat to low, and cook until dal, pumpkin, and radishes start to soften, 30 to 40 minutes.

Heat oil in a small pan over medium heat and add mustard seeds. Stir in garlic, red peppers, curry leaves, and sambar powder. Cook until fragrant, about 5 minutes.

Stir seasoned oil mixture into the stew and cook until flavors combine, 25 to 30 minutes more. Stir in tamarind, salt, and red chile powder.