"It is no way a friendly game. They (Pakistan) are our archrivals, we will do everything to win the match," Harbhajan said as he arrived in the city to take part in the match at the Eden Gardens.
Harbhajan also said that the inclusion of skipper Sourav Ganguly in the team would boost the morale of the team and bolster the confidence of the players.
Ganguly, who could not play the last two Test matches against Australia due to an injury, has already declared his fitness and is expected to be cleared by the team physio Andrew Leipus after a fitness test today.
Harbhajan, who played an important role in the victory against Australia in the last Test match in Mumbai with a five-wicket haul, also said that the team was upbeat after that win.
"We are on a high after winning the (last) Test against Australia," Harbhajan said.
He also rubbished the comments by Aussie skipper Ricky Ponting and the Australia media that Mumbai pitch was a 'dust bowl'.
"They (Australians) are saying this because they could not win and we played better than them," he said.
The day-night match on November 13 was being organised to mark the Platinum Jubilee celebrations of the Board of Control for Cricket in India (BCCI).