Sidhu was a member of the Indian team to the 2012 Summer Olympics in London. She competed in the women's 10 metre air pistol event, finishing twelfth in the qualification round. Sidhu was part of the official London Olympic Games film entitled "First: The Story of the London 2012 Olympic Games". The film, written, produced and directed by Caroline Rowland followed a dozen first-time Olympic athletes as they prepared to compete in London.