Pauri Garhwal district was a part of the erstwhile Garhwal Kingdom ruled by the Pal (Shah) dynasty. The throne of the King was at Srinagar. In 1803 Gurkhas, after many unsuccessful attempts, finally succeeded in capturing Garhwal by defeating the army of King Pradyumna Shah. In 1816, the British defeated the Gurkhas in the Anglo-Nepalese War, and the Garhwal Kingdom was re-established from Tehri.
After independence it was known as Garhwal district and further divided into Pauri Garhwal and Chamoli districts in 1960. In 1997 an additional area was carved out of the Pauri Garhwal and merged with parts of Chamoli and Tehri Garhwal districts to form a new district named Rudraprayag.
detail from en.wikipedia.org