Papaya and Soybean Salad

2 tablespoons grapeseed oil 6 to 8 curry leaves* 1 teaspoon brown mustard seeds 1 teaspoon fennel seeds 1 teaspoon ground coriander 1 teaspoon salt 1/4 teaspoon cardamom seeds 1 cup frozen soya beans, thawed 1/2 a papaya, peeled, seeded and cut into large chunks 1 cup cooked rice ( blend basmati with wild rice) Salt and freshly ground black pepper 1 teaspoon fresh lime juice