Durjan Sal the ruler of Jharkhand was released from prison due to his expertise of diamonds by the Emperor

Solution (By Examveda Team)

Ibrahim Khan marched against Khukhra in 1615 AD and defeated Durjan Sal, capturing him and transporting him to Patna, where he was eventually imprisoned in the fort of Gwalior. The sentence was twelve years in prison. After learning of Sal's ability to detect real diamonds, Jahangir eventually released him.