Complex sentence: In 1863, Nawab Mehar Polo Bahadur made again attempts against British Raj, so British empire destroyed the rule of Nawab Mehar Polo Bahadur.
Split into simpler sentences: In 1863, Nawab Mehar Polo Bahadur made again attempts against British Raj. So, British empire destroyed the rule of Nawab Mehar Polo Bahadur.