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Tibetan spiritual leader the Dalai Lama is greeted by people as he walks to watch an exhibition of traditional Tibetan paintings in Dharmsala, India, Tuesday, July 6, 2010. The Dalai Lama turned 75 on Tuesday and he joined hundreds of cheering followers in this northern Indian town where he has been living in exile since he fled China in 1959. Image Credit: AP

Dharmsala: The Dalai Lama celebrated his 75th birthday Tuesday with hundreds of cheering followers in this northern Indian town where he has been living in exile since he fled Chinese rule in Tibet in 1959.

Looking at posters depicting his life as a child, a young man and a spiritual leader, the man who has come to symbolize Tibet's struggle against China said: "I remember my past and I feel that I haven't wasted these years"

In neighboring Nepal, police detained at least 22 Tibetan exiles on their way to a celebration for the Dalai Lama, according to an Associated Press reporter who was at the police station in Katmandu.

Katmandu Police Chief Ramesh Kharel said the Tibetans were taken for questioning and would be released.

What do you think is the Dalai Lama's greatest achievement? Has his non-violent approach to conflict been successful?