We must not forget the history of Nawabs of Bengal. First Nawab of Bengal was Murshid Quli Khan who became Subedar in 1717. He assumed title of Nawab (meaning deputy king or naib of king) soon after as Mughal power waned after Aurangzeb died. Last of this line was Sarfraz Khan who was defeated by Ali Vardi Khan in 1740 at the battle of Giria.
Sirajuddaula, maternal grandson and heir of Ali Vardi Khan, only came to power in 1756. Thus his line had been in power in Bengal for only 16 years; not long enough to generate the kind of loyalty among the soldiers which comes thru generations of rule.
Sirajuddaula, though a brave soldier, being young, lacked the maturity and guile of his grand father; who had received the titles of Mahabat Jang from the Delhi Emperor for his valor against the Marathas. Additionally, being the descended from the daughter’s side, his ascension to power was envied by many other rival aspirants. This fact was exploited by Lord Clive to the full.
IMO this is one of the main reason why large part of his army showed little hesitation in following their commander Mir Jafer and not rallying to the defense of their Nawab.
Dear Mr. Niaz,
I would like to take some clues from the historically true statements here in your post and add a few more sentences.
The Irani families of Mahabat Jung Ali Vardy Khan and his elder brother Haji Ahmed used to live in Delhi and were serving the govt there. But, because of many upheavals in Delhi it was almost impossible for them to live in Delhi and they went to Dekkan. From there they came to Murshidabad, the Capital of Sube Bengal.
Ali Vardy took a job in the GoB and rose quickly to high positions because he showed efficiency. Subsequently, he was assigned to the important post of the Administartor of Bihar by the then Nawab Malik Sujauddin Khan. When the Nawab died, Al Vardy conspired with the Mughal PM in Delhi to award him the post of Subedar of Bengal, which he duly received by paying taxes as well as big NAZRANA to the PM.
In the meantime, Malik Sarfaraz Khan, the son of late Nawab Suja declared himself the new Nawab in Murshidabad. Emboldened by the Badshahi Farman, Ali Vardy tried to enter the Bengal Capital with his troops. In the ensuing battle, Malik Sarfaraz lost and was killed. Ali Vardy came to the house of Begum Nafisa, the mother of slain Nawab and asked for forgiveness. Nafisa Begum was finally sent to live in Dhaka.
The political stability was shattered by this act by Ali Vardy. Meer Habib, the administrator of Orissa and a brother-in-law of the slain Nawab rebelled against him, and called the Maratha troops. There was a ten year war between Bengal and Marathas. This war had resulted in the weakening of Nawab's control of the country's events.
His own general, (Pathan) Mustafa Khan, rebelled against him when Maratha invasion was repulsed. After a battle, Nawab banished him and his other Pathan followers to Dwarbhanga in Bihar.
Ali Vardy had three daughters and his brother Haji Ahmed had three sons. These sons married their cousins. Haji Jainuddin, the second son-in-law of Ali Vardy and the father of Siraj-ud-Dowlah was the Administrator of Bihar.
He thoght it was dangerous to keep such a formidable enemy near his Capital. He also thought there would be struggle for the throne of Bengal when Ali Vardy died. So, he tried to befriend Mustafa Khan and get his loyalty. But, Jainuddin was killed by Mustafa Khan's troops in his own palace. His belly was cut open by the sudden thrust of a knife hidden in the turban of one of Mustafa's troops.
A battle then ensued between Ali Vardy's and Mustafa Khan's troops. Mustafa Khan probably was killed, I just cannot recall. But, the situation in Bengal was very unstable when a very young Siraj-ud-Dowlah took over the reign of Bengal.
Had his father survived the death of Ali Vardy, he would have certainly become the new Nawab. Situation would have been different in this case. Because, the conspirators would not have dared to go against an over 45 yr. old strong personality who had already earned loyalty from many different sections of Bengal nobles.
All these factors combined together to encourage an easy conspiracy against the young 22 year old new Nawab, who led a luxurious life in the palace. Although, he participated in battles against the Marathas and he was brave, but it was not sufficient to stop conspiracy against him.
He was very young and immature. So, he was not encircled by men of virtue, experience and bravery. He even had to fight against and kill his cousin, Shaukat Jung, who rose against Siraj in Purnea to claim the throne for himself. Such was the situation prevailing in Bengal.
On the other hand, his foes were formidable. His own relative Meer Zafar was not the initial conspirator, but he became the center of the events. Meer Zafar was the brother-in-law of Nawab Ali Vardy.
This is the reason why Robert Clive decided to involve him in the conspiracy. The initiators of conspiracy wanted General Yar Latif Khan to become the new Nawab. Clive decided that another Nawab from the same family would get endorsement from the nobles and generals, and the entire battle would seem like a palace coup.
In this post what I have written is the prelude to the Battle of Plassey. Events that took place in the battle and its aftermath are known and have been discussed by many others. Again, I wrote a long post, but, what I wrote is based on history.