Shivaji’s military conquests made him a legendary figure in the Maratha region. Many came forward to join his army. The Mughal emperor Aurangazeb was anxiously watching the rise of Maratha power under Shivaji. He sent the Mughal governor of the Deccan, Shaista Khan against Shivaji. Shivaji suffered a defeat at the hands of the Mughal forces and lost Poona. But Shivaji once again made a bold attack on Shaista Khan’s military camp at Poona in 1663, killed his son and wounded Khan.

This daring attack affected the prestige of Khan and he was recalled by Aurangazeb. In 1664, Shivaji attacked Surat, the chief port of the Mughals and plundered it.

This time Aurangazeb sent Raja Jai Singh of Amber to fight against Shivaji. He made elaborate preparations and succeeded in besieging the Purander fort where Shivaji lodged his family and treasure. Shivaji opened negotiations with Jai Singh and the Treaty of Purander was signed in 1665. According to the treaty, Shivaji had to surrender 23 forts to the Mughals out of 35 forts held by him. The remaining 12 forts were to be left to Shivaji on condition of service and loyalty to Mughal empire. On the other hand, the Mughals recognized the right of Shivaji to hold certain parts of the Bijapur kingdom. As Shivaji asked to exempt him from personal service to the Mughals, his minor son Shambaji was granted a mansab of 5000.

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