Koh I Noor diamond was taken away from India to Persia during the rule of which Mughal ruler ........

Explanation:

Nadir Shah was a Persian ruler who came to India in 1739. The Mughal empire had been weakened by ruinous wars of succession in the three decades following the death of Aurangzeb, the Hindu Marathas of the Maratha Empire had captured vast swathes of territory in Central and Northern India, whilst many of the Mughal nobles had asserted their independence and founded small states. At the Battle of Karnal on 24 February 1739, Nadir led his army to victory over the Mughals, Muhammad Shah surrendered and both entered Delhi together. Nadir shah took to Persia the Peacock Throne, Kohinoor diamond (mountain of light) and dariya-I- Noor (sea of light) diamond.