Cost of living in Christchurch (New Zealand) is 130% 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 409 prices entered by 61 different people.
For example, you would need at least ₨144,838 (NZ$3,021) in Christchurch to maintain the same standard of living that you can have with ₨63,000 in Aizawl.