Jesse Ryder, 28, is believed to have suffered serious head injuries after the alleged assault and is now in intensive care.
Details of the incident early on Thursday remain sketchy.
Jesse Ryder had been due to fly to Delhi to start his $300,000 contract in the Indian Premier League.
His friends and fellow cricketers have been sending messages of support via social media.
“The whole NZC team’s thoughts are with @DijaRyder this morning,” New Zealand cricket tweeted.
Jesse Ryder – who has featured in New Zealand’s national team – plays his domestic cricket with Wellington.
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