In 1685, Aurangzeb dispatched his son
Muhammad Azam Shah alongside
Ruhullah Khan, the
Mir Bakhshi (paymaster-general), with a force of nearly 50,000 men to capture Bijapur Fort. The
Mughal Army arrived at Bijapur in March 1685. Elite Mughal
Sowars led by
Diler Khan and Qasim Khan began to surround and capture crucial positions around Bijapur Fort. After the encirclement was complete, Prince Muhammad Azam Shah initiated siege operations by positioning cannons around Bijapur Fort. Bijapur Fort, however, was well-defended by 30,000 men led by
Sikandar Adil Shah and his commander Sarza Khan. Attacks by Mughal cannon batteries were repulsed by the large and heavy Bijapur cannons such as the famous "
Malik-i-Maidan" (King of the Field), which fired cannonballs 69 cm in diameter. Instead of capturing territories on open ground, the Mughals dug long trenches and carefully placed their artillery but made no further advancements. The Mughals could not cross through the deep 10-ft moat surrounding Bijapur Fort. Moreover, the 50-ft high 25-ft wide fine
granite and
limestone mortar walls were almost impossible to breach. The situation for the Mughals worsened when
Maratha forces led by Melgiri Pandit under
King Sambhaji had severed food, gunpowder and weapon supplies arriving from the Mughal garrison at
Solapur. The Mughals were now struggling on both fronts and became overburdened by the ongoing siege against the Adil Shahi and the roving Maratha forces. Things worsened when a Bijapuri cannonball struck a Mughal gunpowder position causing a massive explosion into the trenches that killed 500 infantrymen. In response to their hardships, Aurangzeb sent his son
Muazzam and his celebrated commander Abdullah Khan Bahadur Firuz Jang. Unable to allow the collapse of the Mughal Army outside Bijapur Fort, the Mughal commander
Ghazi ud-Din Khan Feroze Jung I led a massive expeditionary reinforcement force to alleviate the hardships of the
Mughal Army and drive out the Maratha forces. Abdullah Khan Bahadur Firuz Jang, a highly experienced Mughal commander positioned at the outpost of Rasulpur, routed a 6,000-strong infantry contingent led by Pam Naik intended to carry supplies to Bijapur Fort during a night attack. The Mughals regained control of supply routes leading to Solapur, but no successful advances had been made into Bijapur Fort. The lengthy siege turned into a stalemate; therefore, Aurangzeb himself gathered a massive army in July 1686 and marched slowly towards Bijapur Fort. He finally arrived outside Bijapur Fort and established encampments beside Abdullah Khan Bahadur Firuz Jang on 4 September 1686. Aurangzeb personally rode out, inspiring his army of almost 100,000 men to begin a full-scale assault. After eight days of intense fighting, the Mughals had successfully damaged the five gates of Bijapur Fort and collapsed substantial portions of the fortified walls, thus enabling them to breach the moat and conquer the city. They captured
Sikandar Adil Shah who was bound in silver chains and presented before Aurangzeb. ==Aftermath==