Alauddin Khalji's conquest of Malwa

The Paramara king Mahalakadeva was a weak ruler, and his prime minister (pradhan) Goga (called Koka in Muslim chronicles) was more powerful than him.

[4] The later historians Yahya, Firishta, and Hajiuddabir state that the Malwa army comprised 40,000 cavalry and 100,000 infantry.

Ayn al-Mulk sent a detailed record of his success to Delhi, where a week-long celebration was held and sweets were distributed among public for the entire week.

[5] After the establishment of peace in a large part of Malwa, Ayn al-Mulk marched to Mandu, where the Paramara king Mahalakadeva stayed.

The Delhi army besieged Mandu, and managed to enter it, after one of Mahalakadeva's fort guards betrayed him.

Using this passage, the Delhi army entered the Mandu fort at night, taking Mahalakadeva by surprise.