Cost of living in Christchurch (New Zealand) is 132% more expensive than in Aizawl (India)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 536 prices entered by 58 different people.
For example, you would need at least ₨139,318 (NZ$2,952) in Christchurch to maintain the same standard of living that you can have with ₨60,000 in Aizawl.