Choedhar was located at Dhongo's house on August 25 last year, leading to the arrest of both men and of Dhongo's wife Solha.
All three were detained for just over a month before being released on 15,000 yuan bail, but were re-arrested soon after. Solha was then re-released, but Dhongo was held in custody until his recent sentencing.
Dhongo was formerly a small-business owner in Triken Village, Nagwa County, in the Amdo region of eastern Tibet.
According to the Tibetan government-in-exile, over 220 Tibetans have died and over 1,294 been seriously injured in the Chinese reaction to the March 2008 protests. Additionally, over 4,657 have been arrested, 371 received prison sentences, and more than 990 disappeared.