Foreign invasions of Nadir Shah and Ahmed Shah Abdali and their role in Mughal disintegration

Nadir Shah’s invasion of India left the most tumultuous and destructive mark on the Mughal history of India. He invaded India in 1739. Nadir Shah known for his brutal and inhumane behavior inflicted irretrievable damage to Mughal rule. This invasion is marked as one of the colossal calamities of the period. The power of Mughals was declining at that time and the central power had no control over far flung provinces, which made foreign invasions easy for the enemies of Mughal rulers. Nadir shah became ruler of Persia when Shah Tahmasp last ruler of Safwid dynasty died in 1736. Since Nadir Shah belonged to Afshar tribe of Khusrasan laid the foundation of Afsharid dynasty when his rule as a king started in Persia. Before Nadir Shah got ascended to the thrown he captured and influenced many regions near to Mughal and Safwid sphere of influence. The diplomatic relations between Mughal and Safwid empires started deteriorating at the time Nadir Shah got ascended to the throne. Mughal emperor stopped exchange of ambassadors with Persian court which was considered as a great insult by Nadir Shah.