Aloogade curry for Poori (Hotel style)

Ingredients:

3 medium Potatoes
1 cup water to cook potatoes
2 tablespoon oil
1/2 teaspoon mustard
1/2 teaspoon cumin
1/2 teaspoon chana dal
1/2 teaspoon urad dal
1 string curry leaves
1/4 teaspoon turmeric
1 large Onion sliced
1 large tomato sliced
1/2 teaspoon ginger chopped
Salt (as per taste)
2 green chili slit
1 pinch hing
2 tablespoon coriander leaves finely chopped

Proceed:

Wash potatoes, peel and cube them. Pressure cook them with 1 cup water and little salt for 1 whistle.
Heat oil in a pan. Add mustard, Cumin; dal's & Curry leaves. Sprinkle hing.
When they begin to splutters add onions, ginger and green chilies fry until golden.
Add tomato, turmeric and salt fry until they turn soft and oil begins to separate.
Transfer the cooked potatoes along with the water used to cook them. Mash them slightly.
Check the salt and spice, if needed add salt and green chili as per taste.
Mix well, cook covered for 3-4 min until the curry reaches think consistency.
Sprinkle coriander leaves.