Migmar Tsering, from Lhoka Gongkar Chideshol of Toephues Choekhor Monastery, joined the monastery at the age of 13 in 1986. On 31 July 1992, he, along with two fellow monks—Tsering (aged 18) and Lhakpa Tsering (aged 17)—engaged in political activities by preparing independence posters and a Tibetan national flag. These materials were displayed in Chideshol township in anticipation of the anniversary celebrations of the People’s Liberation Army.

Their activities remained undiscovered for nearly a month, until they were arrested on 28 August 1992 by Public Security Bureau officials from the Lhoka region. The three monks were taken to Lhoka Tsethang Detention Centre, where they were beaten during interrogations.

On 9 November 1992, the Lhoka People’s Intermediate Court sentenced Migmar Tsering to four years and six months’ imprisonment, along with two years’ deprivation of political rights, on charges of “counter-revolutionary propaganda.”