Soya Chunks Tomato Curry

Soya Chunks -1 cup
Water -11/2 cup
Ripe Tomatoes -2
Boiled potatoes -1
Onion -1
Garlic -5
Green chilly -1
Ginger - 1 inch piece
Vinegar - 1/2 spoon
Pepper powder -3/4 spoon
Chilly powder -1/2 spoon
Meat masala -2 spoons
Salt - as per taste

Boil the soya chunks in 11/2 cups of water till soya chunks absorbs the water completely.When it cools squeeze the soya chunks so that the water is completely drained out.Heat oil in a cooker and add the onions and stir well. Now add the tomatoes ,garlic ,ginger and green chilly and saute well.When it is done add pepper powder,chilly powder and meat masala and salt and saute for two minutes.Now add the soya chunks ,boiled potato pieces and 1/2 cup water ,close the lid and cook until it gives two whistles. When it is done add 1/2 spoon vinegar saute for a minute and remove from flame.Garnish it with corriander leaves.