Which one among the following was not a possible reason for ‘the success of Nadir Shah’s military campaign in Delhi ?

Nadir Shah's successful invasion of Delhi in 1739 was primarily facilitated by the internal decay of the Mughal Empire rather than a technological gap. The Mughal Empire was ruled by the weak and incompetent Muhammad Shah, whose administration was plagued by corruption and faction-ridden nobles [c1, t4]. For years, the Mughals had neglected the strategic defense of the North-West Frontier, allowing Nadir Shah to enter Indian territory without initial opposition [c1, c2]. Furthermore, the Mughal response was characterized by late preparations; the danger was only recognized after the enemy occupied Lahore, and the defense of Delhi was hurried and disorganized [c1]. While Nadir Shah was a military genius, historical accounts emphasize the Mughal's political and administrative failures—such as the lack of unity among nobles and the 'feeble' state of the empire—as the decisive factors, rather than the use of superior military technology by the invading army [c1, t1].

Sources

1. [1] Modern India ,Bipin Chandra, History class XII (NCERT 1982 ed.)[Old NCERT] > Chapter 1: The Decline of the Mughal Empire > The Decline of the Mughal Empire > p. 7
2. [2] History , class XI (Tamilnadu state board 2024 ed.) > Chapter 15: The Marathas > Circumstances > p. 232
3. [3] https://egyankosh.ac.in/bitstream/123456789/62943/1/Block-1.pdf