Nation remembers Gandhi

President Pratibha Patil and Prime Minister Manmohan Singh led the country to pay homage to Mahatma Gandhi, the country's icon of freedom movement, on his 138th birth anniversary on Tuesday. Patil, Singh and other Indian leaders offered their tributes at Gandhi's memorial at Raj Ghat in the heart of New Delhi. Indian-origin American astronaut Sunita Williams also offered flowers at Gandhi memorial.