Indian rice salad with chicken

Name: Indian rice salad with chicken
Ingredients: 500g bag long grain rice; 1 tsp turmeric; small bunch coriander, leaves roughly chopped, stalks reserved; 100g bag toasted cashew, ½ very roughly chopped; 1 cucumber, deseeded and cut into chunks; 1 large red onion, finely chopped; about 110g pack pomegranate seeds; 400g can black bean, drained and rinsed; 2 x roughly 130g packs cooked chicken tikka pieces, chopped; natural yogurt and mini poppadum crisps, to serve (optional); 4 tbsp mango chutney; 1 tbsp sunflower oil; 1 tbsp brown sugar; 1 tbsp medium curry powder, plus 1 tsp for the rice; juice 1½-2 lemon, depending on size