Kalsang Yarphel has been detained since June last year after performing in concerts in Tibet's capital Lhasa.
Damage to houses, school buildings and monasteries is extensive.
Police swarm area to question monks, close down Internet.
They especially warn against tours 'staged' by Chinese officials.
The Tibetan protester and his family are now under police watch at their home.
Chinese authorities restrict the number of those allowed to pursue their studies there.
The move followed increased scrutiny following resistance to a loyalty campaign.
Villagers petition China's central government over 'collusion' between local authorities and mining companies.
Family members bringing food and clothes were also turned away, he says.
They had called out for Tibetan freedom and the return of exiled spiritual leader the Dalai Lama.
More are being forced into resettlement towns far from traditional grazing areas.
He had called for Tibetan freedom and the Dalai Lama's return.
One had tried only to lift the injured protester into a vehicle to be taken for help.
They demand 'equality of education,' calling for the right to be taught in Tibetan.