The Bhadrakali Temple was built by King Pulakesi II of the Chalukya dynasty in 625 AD. When the Kakatiya monarchs took over the region, they made Bhadrakali their tutelary deity and replaced the goddess's left eye with a magnificent Koh-i-Noor diamond.
The captivating diamond was discovered in the Kollur mines (Golconda mines). Later, in 1310 AD, the Delhi sultanate, led by Alauddin Khilji, conquered the Kakatiya empire, destroyed the Bhadrakali temple, and looted the valuable Koh-i-Noor, which they transferred to Delhi.
From Babur and Humayun through Sher Shah Suri to Shah Jahan, Aurangzeb, and Maharaja Ranjit Singh of Patiala, the awe-inspiring diamond passed from one hand to the next.
When Maharaja Ranjit Singh was about to die, he made a will that the prized diamond be handed to the deity at Jagannath Temple. The British officials, on the other hand, disregarded the king's wishes and instead carried it to England as a present for their queen.