We should not take Kiwis lightly: Harbhajan Singh

New Zealand might have suffered a 0-4 thrashing at the hands of Bangladesh, but India should not take them lightly in the upcoming three-Test and five-ODI series, according to seasoned off-spinner Harbhajan Singh.

"We should not think that we can beat New Zealand easily just because they have lost 0-4 to Bangladesh (in the recent ODI series). We have to stay focused," Harbhajan said on the sideline of a promotional event in Delhi.

Harbhajan also said that now they were a confident bunch after their the Test and ODI series wins over Australia.

"We are very high on confidence. We have done very well against the Aussies. We are really looking forward to the New Zealanders' challenge. If we play to our potential we can win the (three-Test and five-ODI) series against New Zealand also," he said.

Terming the result of Bangladesh-New Zealand series "shocking", Harbhajan said the country has improved their performance over the last couple of years.

"I did not watch the series, but it was a little shocking. Teams should now be very careful of Bangladesh. They can be a really dangerous side," he said.

"It shows how much the Bangladesh team has improved. They are playing better cricket now," Harbhajan said of the bottom-ranked Test side, who has climbed to the ninth spot in ICC ODI ranking after their success at the New Zealand series.