What does Shreyas Iyer's Māori post after India's ODI series win mean?

India stand-in captain Shreyas Iyer celebrated the 3-1 ODI series win over New Zealand by posting in Māori, the country's indigenous language. "He wikitoria, he mihi nui," he wrote on X, meaning "A victory, a big thank you." Iyer had earlier used the Māori phrase "Ka mau te wehi", meaning "How terrific", after India's T20I series triumph.