Heat the oil in a pot and add the onion and cumin seeds. When they start to crackle, add the courgette slices and chickpeas. Stir and sprinkle with the chilli, coriander and turmeric powder(s). Mix well and add the tomatoes. Sprinkle with salt, the green chilli and fresh coriander.
Cover and cook for about 10-12 mins or until done.