Chicken Presto

how to cook(prepare)Chicken Presto ?
Ingredients

1 chicken, cut into medium /small pieces
3 green chillies, chopped
1 inch piece ginger, finely chopped
5 garlic pods, chopped roughly
Half tsp turmeric
3 tbs soya sauce
1 tsp mustard seeds
Some chopped cilantro
Method
Marinate the washed chicken pieces with a mixture of soya sauce, garlic, ginger, turmeric, green chillies for about ten minutes.
Take a well seasoned non-stick, pan, pour in 2 tbs of oil, heat, add mustard seeds, once they sputter, add the chicken with ingredients.
Keep stirring the chicken, let it brown slowly, the heat must be very slow, not weak.
Cover the pan with a lid but stir it every two minutes.
Add chopped cilantro when cooked.