Crisp fish salad with chilli lime dressing

Ingredients

• 250 grams firm white fish fillets
• vegetable oil, for deep-frying
• 1 medium_piece (170g) red onion, sliced thinly
• 6 green onions, sliced thinly
• 2 (260g) lebanese cucumbers, seeded, sliced thinly
• 1 cup vietnamese mint leaves, firmly packed
• 1 cup fresh coriander leaves, firmly packed
• 2 tablespoons roasted unsalted peanuts, coarsely chopped
• 2 teaspoons finely grated lime rind
• Chilli dressing
• 4 small_piece green thai chillies, chopped finely
• 2 tablespoons fish sauce
• 1/3 cup (80ml) lime juice
• 1 tablespoon brown sugar