Injuries suffered in beatings are now being treated but may not heal, his brother says.
Religious institutions are required to abide by four requirements under the watchful eye of management committees.
Gyaye Phuntsok never recovered from injuries to his legs suffered during beatings in prison, sources say.
Travel by air and by train is banned amid Chinese security fears in a month of sensitive anniversaries.
Hundreds greet him warmly on his return despite authorities' attempts to block a public welcome.
A friend held with him has also completed his sentence but has not yet been released, sources say.
Joleb Jigme had been jailed for revealing state secrets, a charge often made against Tibetans spreading news of political protests.
Exile Tibetan media reports show incumbent Lobsang Sangay ahead in polls.
Selection comes as the struggle for autonomy marks five years since the Dalai Lama withdrew from politics.
Some Tibetans question the plans, saying there isn't enough snow and that Beijing has yet to examine the project's impacts.
Rights groups and family members fear Jigme Gyatso, also known as Jigme Goril, may have been tortured in custody.
Karmapa Ogyen Trinley Dorje says it’s critical that every Tibetan remain alive to preserve the land and the people.
Chinese authorities isolate family members, telling them to say the protester died in a house fire.
She is taken into custody after holding up a photo of the Dalai Lama and calling out for Tibetan freedom.
His action comes as a Tibetan student in India also sets himself on fire to protest China's rule in Tibetan areas.