Indian civilization has a long and prosperous history. The first known religion was Hinduism, which was introduced by Aryan invaders some three thousand years ago, but Islam was introduced in the 8th century during the reign of King Narsieh Nirvasita and quickly became established in several coastal regions.
In the mid-18th century the Kasi dynasty from Baktristan became interested in the region. Having already secured the independence of the eastern provinces of Persia, Ahmad Shah Kasi sought to expand into the stagnant and vulnerable India. In 1761 he defeated the Chauhan at the First Battle of Panipat, after which he conquered Delhi and much of the rest of Hindustan.
Ahmad Shah's son and grandson would come to rule almost the entire subcontinent. However, in 1809 Shujah Shah mistakenly sacked a trading post owned by the Albic East India Company and, despite his apologies and offers of compensation, Albion saw fit to intervene militarily and despose him. Afterwards the East India Company would seize more and more Indian land, until the First Indian War of Independence of 1857 overthrew both the Company and the Kasis. The remaining members of the Kasi dynasty retreated to Baktristan, where they established the foundation of the modern-day country.
Albion did manage to defeat the rebellion, but reorganized India to come under direct Albic rule and formally gave the Indian people all the rights of Britons.
India became a key part of the Albic Empire, and Indian troops served all over the world from Borneo to Zululand, and to the fields of Aquitaine during the Second World War. However, in 1944 at the height of the Third World War, with the majority of Albic troops already occupied in the European theatre, China launched an invasion of India from the north and east. The Azad Hind organization, formed to fight for India's freedom, quickly gained thousands of recruits who helped take the entirety of what is now Hindustan.
At the beginning of the Long Ceasefire, India was divided between the de facto independent Republic of Hindustan in the north, and the Albic-controlled Indian Empire in the south, with occasional raids and skirmishes across the front. The front however never reopened with the resumption of the war, as in 1958, with decolonization rapidly gaining pace around the rest of the world, Albion and the Republic finally agreed to peace terms. The south became independent with the Albic Commonwealth as the Dominion of the Deccan, while Hindustan renounced any affinity to China or the rest of the Axis powers.
Ever since then relations between north and south have been cordial, if a little tense at times. Deccan helped Hindustan repel a Chinese invasion in 1961, and the two have cooperated on matters such as energy and foreign policy. Nevertheless, with all the historic differences between north and south there seems to be little prospect of reunification, and the majority of both Hindustan and Deccan's citizens seem to be happy with the current situation.