Black Eyed Beans

Ingredients:

1 cup black eye beans (lobia,chawalie)
2 tablespoons oil
1 teaspoon cumin seeds (jeera)
Pinch of asafetida
1 tablespoon coriander powder (dhania)
1 tablespoon shredded ginger (adrak)
¼ teaspoon red chili powder
¼ teaspoon turmeric (haldi)
½ teaspoon mango powder (amchoor)
¼ teaspoon garam masala
1 teaspoon salt
3 cups water
1 chopped tomato