Complex sentence: The Tibet affair had postponed a previously planned attack on the Garhwal Kingdom, but by 1803 the Raja of Garhwal, Pradyuman Shah had also been defeated, and later killed in the struggle in January 1804 and all his land annexed.
Split into simpler sentences: The Tibet affair had postponed a previously planned attack on the Garhwal Kingdom, but by 1803 Raja of Garhwal Pradyuman Shah had also been defeated. He was killed in the struggle in January 1804, and all his land annexed.