Tandoori fish

Name: Tandoori fish
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: Indian
Ingredients: 4 Whole Tarakihi (Plate size, approx 300g each See notes below.); 4 Tbsp Tandoori paste; 300 g Plain unsweetened yoghurt; 15 Cherry tomatoes; ½ Cucumber; ½ Red Onion; 1 Tsp Cumin powder; 1 whole Dried Kashmiri chilli (Sub with mild chilli (adjust to taste)); 1 Tsp Black mustard seeds; ½ Tsp Garam masala; Bunch of fresh mint; Bunch of Fresh coriander; ½ Lemon (Juice only plus extra slices for garnish); Salt