Masala King Prawn Curry

Name: Masala King Prawn Curry
Cuisine: Asian, Indian
Ingredients: 10 jumbo king prawns (size 6/8); 1/2 tsp salt; 1/2 tsp turmeric powder; 1/4 tsp paprika powder; 3 tbsp oil; 2 medium onions; 1/2 tsp salt; 1 tsp cumin seeds; 2 bay leaves; 3 green chillies; 1 large tomato; 250ml water; 1 tsp ginger & garlic paste; 1 tsp tomato paste; 1/2 tsp turmeric powder; 1 tsp coriander powder; 1 tsp red chilli powder; 1 tsp medium curry powder; 350ml water; 2 tbsp fresh coriander leaves