Complex sentence: In 1813, Diwan Mohkam Chand defeated Kabul Wazir Fateh Khan at attock in an open pitched battle and ended Muslim rule in Attock the Sikhs ruled Attock till British Empire captured it, at which time lower Hazara became tributary to them.
Split into simpler sentences: In 1813, Diwan Mohkam Chand defeated Kabul Wazir Fateh Khan at Attock in an open pitched battle and ended Muslim rule in Attock. The Sikhs ruled Attock till British Empire captured it, at which time lower Hazara became tributary to them.