The First Battle of Delhi took place on 28th March 1737 between Maratha Empire and the Mughals. The Marathas were victorious in the battle and the Mughal king was forced to sign a treaty promising Malwa province, tributes of the region between Narmada and Chambal and 50 lakh rupees as war expenses to the Marathas.
In the year 1737 the Maratha PeshwaBaji Rao I attacked the Mughal imperial capital at Delhi and defeated a well trained Mughal Army led by Amir Khan Bahadur. To get rid of Marathas, the Mughal emperor asked Nizam for help. The Nizam left Deccan to rescue Mughals from the invasion of Marathas, but was defeated decisively in the Battle of Bhopal. The Marathas extracted large tributaries from Mughals and signed a treaty which ceded Malwa to the Peshwa.