why did sultanate came to india
Qutb-ud-din Aibak, a former slave of Muhammad Ghori, was the first sultan of Delhi and his dynasty conquered large areas of northern India. Afterwards the Khilji dynasty was also able to conquer most of central India, but both failed to unite the Indian subcontinent.ltutmish's rule lasted till 1236. Following his death, the Delhi Sultanate saw a succession of weak rulers, disputing Muslim nobility, assassinations, and short-lived tenures. Power shifted from Rukn ud din Firuz to Razia Sultana and others, until Ghiyas ud din Balban came to power and ruled from 1266 to 1287.