Heat the oil in a large saucepan over a medium heat. Add the onion, garlic and ginger, cook stirring for about 5 minutes or until onion is soft but not coloured.
Add spices, cook stirring until fragrant and then stir in tomato paste.
Add kumara, celery, chickpeas, honey, soy sauce, stock and water. Bring to the boil, reduce heat.
Simmer, covered for about 10 minutes or until the kumara are tender.
Stand soup for 15 minutes to cool slightly.
Remove 1/3 of the soup (including the vegetables) and place in blender.
Purée until smooth. Return the puréed soup to pan with the zucchini and return soup to the boil.