Prepare the chickpeas: If using dried black chickpeas, soak them overnight and cook them until soft. Pressure cook the soaked chickpeas for 12 minutes on high pressure. For detailed instructions, please check my Instant Pot Chickpeas recipe.
Roast the pumpkin: Cut the pumpkin into cubes. Toss with oil, salt, red chili powder, turmeric, and garam masala. Roast in a preheated oven at 200°C (400°F) for 20–25 minutes until tender and golden.