The Kasi Empire was the period of Indian history when the subcontinent was ruled by the Kasi Dynasty, members of a Bactrian clan from the region around Kuwatta. The Kasi state arose during the early 18th century, shaking off control from the declining Peshdadid Empire of Iran, and by 1761 it had grown strong enough to invade northern India and conquer the Chauhans. Over the next few decades it expanded to cover almost the entirety of the subcontinent, but at the same time it increasingly came under political and economic influence from the European colonial powers of Albion and Aquitaine.
The Kasi Empire sided with the Coalition during the First World War, and battles were fought on its territory involving Albic and Aquitanian colonial troops as well as their native allies. Later in the war it came under attack from China, which resulted in the occupation of the Bactrian provinces and ultimately the creation of the modern-day country of Baktristan.
By 1857 the Kasi emperors were little more than figureheads compared to local princes and the Albic governors. Their rule was finally ended in the Indian Rebellion of that year, after which India was reorganized into a direct possession of the Albic crown.