"I'll put my best in the quarter final match against Jharkhand and try to return to the Indian team," the 32-year-old cricketer said on the sidelines of his team's practice session at Keenan stadium here.
Harbhajan, however, refused to comment on the recent performances of the Indian team in the ongoing ODI series against Pakistan.
Asked about the possibility of a come back to the Indian team for the forthcoming limited-over series against England, to be decided tomorrow, Singh said his responsibility would be to perform in the Ranji match against Jharkhand.
"I have come here to play cricket and my responsibility is to perform to my best," he said.
"I am looking forward to tomorrow's match against Jharkhand, which is an important match for either of the team to move forward," he added.
"We have been performing well and reached this stage. We'll have to keep the momentum and did not want to take the host team lightly," he said.
Asked about the home team, Singh said he knew some of the players such as in-form left-handed batsmen Saurabh Tiwary and Ishank Jaggi.
"Tiwary belonged to Mumbai Indian team in the IPL, while I played against Jaggi. They are good cricketers," he said.
