India lost that match by just 4 runs after New Zealand posted a mammoth 212 runs.
"I genuinely believed that I could hit a six."
Harbhajan also spoke about the positives for the Indian team from their overseas tours and how it will help them in the upcoming World Cup.
Karthik faced flak from all quarters for his refusal to take the run.
"He was in great touch, was backing himself."
The series decider turned out to be a thriller, with India almost chasing down a mammoth target.
India lost the game by four runs.
All the major stats and numbers recorded during the T20I series-decider in Hamilton.
Manjrekar also lauded Karthik for his power-hitting.
Krunal and DK tried their best in the end, but the target was too much to their liking.