According to some historians, Alauddin Khilji wished to occupy Mewar ruler Ratan Singh’s beautiful wife Padmini. He sent this messsage to Ratan Singh that if he wanted to save himself from severe destruction, he should send his wife Padmini in the Royal Harem.
When Ratan Singh rejected this proposal, Alauddin invaded upon Chittor. According to Malik Muhammad Jayasi’s Padmavat which was composed in around 1540 CE during the reign of Sher Shah Suri, the major reason of this invasion was to occupy Padmini.