 Some historians have identified Milachchhrikara with Iltutmish, thus theorizing that Iltutmish unsuccessfully tried to invade Gujarat.However, others have dismissed this identification as inaccurate.In 1236, Iltutmish fell ill during a march towards Qarluq's stronghold of Bamyan, and returned to Delhi on 20 April, at the time chosen by his astrologers.