 IBNLive.com | Sunita Williams unfurls tricolour in space, wishes I-Day Rediff Indian-American astronaut Sunita Williams [ Images ] displayed the tricolour on board the International Space Station [ Images ] and wished Indians a very happy Independence Day. "I wish India [ Images ] a very happy Independence Day for August 15. Indian-Americans celebrate I-day while Sunita greets from space Astronaut to Run Triathlon in Space | Video Sunita Williams unfurls tricolour in space |