of the Carnatic and Chanda Sahib faced the task of expelling the Marathas under Raghoji I Bhonsle, authorised by Shahu. Dost Ali Khan lost his life on 20 May 1740 at the Battle of Damalcherry in defence of Arcot and its populace, which was eventually looted and plundered. Chanda Sahib along with his garrison was captured and imprisoned in Satara. Chanda Sahib and his forces ferociously defended their rightful reams during the Siege of Trichinopoly and almost all the territories of the Nawab of the Carnatic despite being outnumbered substantially by the Marathas, their daunting efforts soon attracted the attention of the curious French East India Company official named Joseph François Dupleix. dissatisfied by the Maratha occupation of the territories of the Nawab of the Carnatic, Asaf Jah I led an expedition to liberate the Carnatic he was joined by Sadatullah Khan II and Anwaruddin Muhammed Khan together they recaptured Arcot and initiated the Siege of Trichinopoly (1743), which lasted five months and forced the Marathas led by Murari Rao Ghorpade to evacuate the Carnatic. In the year 1747, the Marathas led by Raghoji I Bhonsle, began to raid, pillage and annex the territories of the Nawab of Bengal Alivardi Khan. During the Maratha invasion of Orissa, its Subedar Mir Jafar completely withdrew all forces until the arrival of Alivardi Khan and the Mughal Army at the Battle of Burdwan where Raghoji I Bhonsle and his Maratha forces were completely routed. The enraged Nawab of Bengal Alivardi Khan then dismissed the shamed Mir Jafar. However, four years later Orissa was ceded over to the Marathas by the Mughal Emperor. Invasion of Nadir Shah On 13 February 1739 the Persians under the military genius Nader Shah, the commander of the Afsharids, had deposed the former Safavid dynasty, then defeated Persia's arch rival, the Ottoman Empire several times, and had therefore secured the western front. Now his eyes turned upon the wealthy but weakened Mughal Empire. In the year 1739, Nader Shah invaded the Mughal Empire, and defeated Muhammad Shah during the Battle of Karnal in less than three hours, and then marched upon the Mughal capital Delhi, and after a chain of events, he completely sacked and looted it, and occupied much of the northern regions of the Mughal Empire. Tensions with Persia Nader Shah wanted to subdue Afghan rebels led by the Ghilzai tribe particularly in the region around Kandahar.