Shangri Lhagyal was born in Tongpa Bangzo village, Zogan county, Chamdo prefecture in eastern Tibet in 1921.
Juchen Thupten Namgyal, ex-Prime Minister of The Tibetan Government in exile in Dharamsala, India, mentioned that Chamdowa Shangri Lhagyal was one of the commanders of Chushi Gangdrug in Gongkar Dzong.
[1] "On 9 November 1958, Chamdowa Shangri Lhagyal led a successful attack on the Chinese troops in Drashi Dra.
At mid-night when Ratuk Ngawang and his troops were camping at Drashi Phu, a messenger returned and briefed them about the situation in the surrounding areas.
At the Indian border, the Chushi Gangdrug Tenshung Danglang Mak and the Tibetan Army soldiers stood in formation for a farewell salute and sought the Dalai Lama’s blessing.
[3][4] At that moment, it was difficult for him to say goodbye to the Chushi Gangdrug Tenshung Danglang Mak and Tibetan Army soldiers who had escorted the Dalai Lama and his entourage all the way from Lhasa safely to Indian border.
Andrug Jindak persuaded Kunga Samten Dewatshang in Tawang to surrender his weapons to the Indian authorities.
[11] On 29 April 1959, they handed over their rifles, ammunition, and all other weapons to the Deputy Commissioner of Tezpur district, and permitted to take their gold, silver, and other valuables.