On 12 November 1736, the Maratha general Bajirao advanced on Old Delhi to attack the Mughal capital. Mughal emperor Muhammad Shah sent Saadat Ali Khan I with a 150,000-strong army to stop the Maratha advance on Delhi. Muhammad Shah sent Mir Hasan Khan Koka with an army to intercept Bajirao. The Mughals were devastated by the fierce Maratha attack, and lost half of their army, which compelled them to ask for all regional rulers to help against the army of the Marathas. The battle signified the further expansion of the Maratha Empire towards the north. The Marathas extracted large tributaries from the Mughals, and signed a treaty which ceded Malwa to the Marathas. The Maratha plunder of Delhi weakened the Mughal Empire, which got further weakened after successive invasions of Nadir Shah in 1739 and Ahmad Shah Abdali in the 1750s.