Complex sentence: Tipu Sultan's prime minister Mir Saadiq, a traitor was bought by the British who pulled out the Maysurian army for paying wages in middle of the battle, thus allowing British to storm the boundary wall with little defence.
Split into simpler sentences: Tipu Sultan's prime minister Mir Saadiq was a traitor bought by the British. He pulled out the Maysurian army for paying wages in the midst of the battle, thus allowing British forces to storm the boundary wall with little defence.