The Peshwa began to march on the Mughal capital, Delhi, from Pune on 12 November 1736 with a force of 50,000 cavalry troops. Learning of the advancing Maratha army, the Mughal emperor asked Saadat Ali Khan I to march from Agra and check the advance. The Maratha chiefs Malhar Rao Holkar, Vithoji Bule and Pilaji Jadhav crossed Yamuna and plundered the Mughal territories in the Doab. Saadat Khan led a force of 150,000, defeated them, and retired to Mathura. Malhar Rao Holkar rejoined Baji Rao's army near Gwalior. Samsam-ud-Daulah, Mir Bakshi and Muhammad Khan Bangash invited Saadat Ali Khan to a banquet in Samsam-ud-Daulah's tent in Mathura, thinking that the Marathas had retreated to the Deccan. During the feast, they learnt that Baji Rao had slipped along the Jat and Mewati hill route (avoiding the direct Agra-Delhi route) and was at Delhi. The Mughal commanders left the feast and began a hasty return to capital. The Mughal emperor dispatched a force, led by Mir Hasan Khan Koka, to check Baji Rao's advance. The Marathas defeated his force in the 28 March 1737 Battle of Delhi. Baji Rao then retreated from the capital, concerned about the approach of a larger Mughal force from Mathura.