The last Khalji ruler was Ala ud-Din Khalji's 18-year-old son Qutb ud-Din Mubarak Shah Khalji, who ruled for four years before he was killed by Khusro Khan, another slave-general with Hindu origins, who reverted from Islam and favoured his Hindu Baradu military clan in the nobility. Khusro Khan's reign lasted only a few months, when Ghazi Malik, later to be called Ghiyath al-Din Tughlaq, defeated him with the help of Punjabi Khokhar tribesmen and assumed power in 1320, thus ending the Khalji dynasty and starting the Tughlaq dynasty.