Commonwealth Games silver medallist Gyaneshwari Yadav finished a creditable eighth in the women's 53kg event at the IWF World Championships on Thursday while star Indian weightlifter Mirabai Chanu withdrew from the competition due to a back issue. India's Gyaneshwari Yadav finished eighth in the women's 53kg event at the IWF World Weightlifting Championships on Thursday, while Mirabai Chanu withdrew from the competition due to a back issue.