Siege of Bijapur
1685 CE.
Shown on the map at 16.828°, 75.709°.
The siege of Bijapur began in April 1685 and ended in September 1686 with a Mughal victory. The siege began when Aurangzeb dispatched his son, Muhammad Azam Shah, with a force of nearly 50,000 men to capture Bijapur Fort and defeat Sikandar Adil Shah, the then Sultan of Bijapur, who had refused to be a vassal of the Mughal Empire. The siege of Bijapur was one of the longest military engagements of the Mughals, lasting more than 15 months, until Aurangzeb personally arrived to organise a victory.
Text from the Wikipedia article Siege of Bijapur, licensed CC BY-SA 4.0.