 In 1649 another blow knocked down Mughal prestige—Kandahar was recovered by Shah Abbas II.In the ensuing Mughal-Safavid War the Mughals twice attempted to eject the Persians from Kandahar under the command of Prince Aurangzeb (in 1649 and 1652) —on both occasions Raja Jai Singh was present as an army commander, but the attempts failed due to the lack of adequate artillery and poor marksmanship of the Mughal gunners.A third grand attempt was made in 1653 under the command of Shah Jahan's oldest and favorite son Dara Shikoh, a deadly rival of Aurangzeb, and again Jai Singh was sent with this army.