People across India paid tribute to the "Father of the Nation," Mahatma Gandhi, on his 144th birthday. India's president Pranab Mukherjee and other high-ranking political leaders offered floral tributes at the Gandhi memorial. Tibetan prime minister in exile, Lobsang Sangay, praised Gandhi for his ideologies and policy of non-violence. He said Gandhi's model of leadership has inspired Tibetans. Gandhi became an international icon for his non-violent struggle against British colonial rule. He famously led Indians in the 250 mile "Salt March" in 1930 in a direct campaign against the British-imposed salt tax. Gandhi was shot dead by a Hindu fanatic in January, 1948 - less than a year after India gained its independence. In 2007, the UN declared that October second would be observed as "Intentional Day of Non-Violence" as a tribute to Gandhi's philosophy.