Chopra says Cardiff can only return to winning ways if they start pulling together as a team and said the players had discussed their form.
He added: "It's OK when things are going well like at the beginning of the season, but when things are tough like they are now, who has got the balls to stand up and be counted?
"Before the international break everything was looking good. We knew this month was going to be a hard month for us and if we want to be challenging for the play-offs and top spot we've got to be beating the teams around us.
"We've got another game tomorrow and we will try and put things right."
Newcastle-born Chopra says he has belief in himself and his fellow team-mates that they can turn around the Bluebirds fortunes but wonders if everyone feels the same.
"It's the belief whether they've got it in themselves," he added. "I think there's players playing with low confidence and I don't know why because they are playing for a good club.
"I'm part of the team as well and it's down to everyone. We are all in this together.
"Everyone's had their say. Whatever happens in the changing room stays in the changing room.
"It's the perfect time to put things right."
Meanwhile, Cardiff have announced a two-year shirt sponsorship deal with SBOBET.com, who also sponsor Premier League side West Ham.
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