Chickpea and mango salad

Name: Chickpea and mango salad
Ingredients: 2 tbsp olive oil; 8 curry leaves (ideally fresh but use dried if you can’t get fresh); thumb-sized piece fresh root ginger, peeled and grated; 1 tsp mustard seeds; 1–2 green chillies, finely chopped; ½ tsp cumin seeds; ½ tsp asafoetida (optional); 400g tin chickpeas, drained and rinsed; 400g tin black chickpeas (kala chana), drained and rinsed; 75g/2¾oz grated coconut or 2 tbsp desiccated coconut; 250g/9oz fresh or tinned mango, finely diced; 1 lime, juice only; salt