In the 17th century, Bhutan faced multiple incursions by Tibetan forces who sought a highly prized relic, the Ranjung Kharsapani. Zhabdrung Ngawang Namgyel, the leader of Bhutan, successfully repelled the Tibetan invaders, and in commemoration of this victory, he instituted the Punakha Drubchen festival. Consequently, Punakha Drubchen has since become an annual celebration in Punakha Dzongkhag.