Congress leader Rahul Gandhi launched a 'White T-shirt' campaign on his 54th birthday. "I'm often asked why I always wear a 'white T-shirt'. This T-shirt symbolises transparency, resolve and simplicity for me," Gandhi said. "Where and how useful are these values in your life? Use #WhiteTshirtArmy and tell me in a video...I will gift you a white T-shirt," he added.