1. 1. Preheat the oven to 400°F (200°C).

2. 2. Rinse and drain the chickpeas.

3. 3. In a bowl, mix the chickpeas with oil, cumin seed, mustard seeds, turmeric, chili powder, salt, and pepper.

4. 4. Spread the seasoned chickpeas on a baking sheet in a single layer.

5. 5. Roast in the preheated oven for 25-30 minutes, stirring halfway through, until crispy and golden brown.

6. 6. Remove from the oven and let cool before serving.