New Zealand has nothing to lose. India is currently the number 1 test side and odds are heavily stacked against New Zealand. On top of that, many of their star players are not playing due to injury. But as we have seen during the ODI series, overconfidence from the part of the Indians can prove to be their disadvantage. And some of the newcomers are performing well for New Zealand, such as Kyle Jamieson.
Absolutely correct over confidence and substandard bowling were the main reason for India's humiliating defeat in the ODI. I am sure by now they know what went wrong and what they need to do for their test series. There will be too much pressure on Indian team to perform well in the up coming test series.
India vs New Zealand test match series won’t be a one sided contest as New Zealand has shown during the ODI series that they won’t be pushed around by team India, and hence I believe that they’ll make it very difficult for team India to win this series. Furthermore team India will be out for revenge as they have suffered a humiliating white wash in the ODI series, and therefore it’ll be interesting to see what kind of tactics will they deploy to beat New Zealand in their home.