MUMBAI: One Direction fans are disappointed over Zayn Malik’s radio silence on his former band--One Direction’s 10th anniversary, which was yesterday. The popular boy band formed on the X Factor in 2010 and other members Harry Styles, 26, Liam Payne, 26, Louis Tomlinson, 28, and Niall Horan, 26, each posted about the special day on Thursday. But Zayn, 27, who left the band in 2015 after struggling with stress, did not share anything on social media.