By SABC Sport
14th October 2023
The Black Caps' captain returned from seven months out with a knee injury and scored 78 in the eight-wicket success in Chennai.
But Williamson was forced to retire hurt after suffering a freak injury when he was hit on the thumb as he ran through for a quick single.
New Zealand Cricket (NZC) announced on Saturday that an X-ray had revealed an undisplaced fracture to his left thumb.
While a cruel blow, Williamson will remain with the squad and is aiming to be available for the final pool matches next month.
Tom Blundell has been called up to the squad as cover and will travel to India as back-up.
"Firstly, we're all feeling for Kane to have this occur after all his hard work to return from his knee injury," New Zealand head coach Gary Stead said.
"While it's disappointing news, the initial diagnosis has given us some optimism he can still feature later in the pool play following a period of rest and rehabilitation.
"Kane is clearly a massive part of our side and a world class player and captain - so we'll look to give him every opportunity we can to return in the tournament."