Balti Chicken with Lentils - Indian

ngredients 75 g (3 oz) split yellow lentils 60 ml (4 tbsp) corn oil 2 medium leeks, chopped 6 large dried red chillies 4 curry leaves 5 ml (1 tsp) mustard seeds 10 ml (2 tsp) mango powder 2 medium tomatoes, chopped 2.5 ml (1/2 tsp) chilli powder 5 ml (1 tsp) ground coriander 450 g (1 lb) boneless chicken, skinned and cubed salt 15 ml (1 tbsp) chopped fresh coriander, to garnish paratha, to serve