Complex sentence: In November 1819, Dost Mohammed accepted sovereignty of Maharajah over Peshawar along with a revenue payment of Rs one lac a year, which became a first instance in 800 years, when Peshawar fell to an Indian conquerer.
Split into simpler sentences: In November 1819, Dost Mohammed accepted the sovereignty of the Maharaja over Peshawar, along with a revenue payment of Rs one lac a year. This was the first instance in 800 years that Peshawar fell to an Indian conquerer.