Siege of Golconda

In January 1687, the Mughal Emperor Aurangzeb led his forces to besiege the Qutb Shahi dynasty at Golconda Fort (also known as the Diamond Capital and the only source of diamonds at that time) and was home to the Kollur Mine. The ruler of Golconda was Abul Hasan Qutb Shah. Aurangzeb and the Mughal army had successfully conquered two Muslim kingdoms: Nizams of Ahmednagar and the Adilshahis of Bijapur. It was only a matter of time that the Mughal army arrived at Golconda Fort. The siege of Golconda lasted 8 months and on various occasions it had pushed the massive Mughal army to its limits, in fact the Golconda Fort was probably the most impregnable fort in South Asia. Aurangzeb and the Mughals entered Golconda through a decisive victory but through the secret treachery of Sarandaz Khan, a military official in the army of the Qutb Shahi dynasty,who was bribed to open one gate and let the Mughals enter the fort. This battle was important for both sides,because of the place being the only source of diamonds,the fort had good defenses, having spikes on the front gate to defend themselves for the Mughal elephants,and also having corners where the walls were cut like a diamond,whenever a guard will spot the enemies,he will clap and the voice will echo so that everyone hears it.