The Battle of Plassey in 1757 was between Sirajuddaulah, the Nawab of Bengal, and the British East India Company forces. The British had promised to make Mir Jafar the new Nawab if they helped defeat Sirajuddaulah. During the battle, Mir Jafar and his forces secretly allied with the British against Sirajuddaulah, weakening his army. As a result, Sirajuddaulah's forces were defeated and Mir Jafar was installed as the new Nawab of Bengal by the British, marking the beginning of British political power in India.

2. Battle of Plassey
Battle of Plassey was fought in
1757 and Sirajuddaulah and his
army was against The britishers,
the britishers promised to make Mir
Jafar the nawab of Bengal after
defeating Sirajuddaulah. So, During
the battle Mir Jafar and Britishers
became one power and
Sirajuddaulah 's army was weak,
hence defeating Sirajuddaulah Mir
Jafar was made the nawab of
Bengal by the Britishers.

4. FIRST
• The English wanted to establish their
political, administrative and economic
supremacy over Bengal for which it
was essential to wage war against the
Nawab. So they wanted to dethrone
the Nawab, Sirajuddaula and
denthroned Mir Jafar their puppet in
his place and fought the decisive
battle of Plessey.

5. SECOND
• The relatives of Sirajuddaula
opposed him. The English
supported Shaukat Jang but they
failed to remove Sirajuddaula. As
Sirajuddaula began to watch their
activities very minutely, they
decided to remove him from the
throne by all means.

6. THIRD
• The English never respected the
Nawab, hence the feeling of
hatred also developed in the heart
of the Nawab for the English.
However, the Nawab wanted to
strike a compromise with them
but he failed and war broke out
between the two.

7. FOURTH
• The British knew that in spite of all power
and efficiency, the army of Sirajuddaula
would prove to be worthless because of
the traitors. The English concluded a
secret treaty with Mir Jafar on 4thJune
1757. In enhanced the power of the
English. However, the army of
Sirajuddaula was strong enough to defeat
the English but the teacher of Mir Jaffar
mined him.

8. FIFTH
• Sirajuddaula thought the French to be more trust
worthy than the English. He was also sad at the
loss of Chandanagar and his defeat at the hands
of the English.
The English pressurised the Nawab to outset
and French from India and not to allow them to
continue their trade in India. Moreover, some
Frenchmen were serving in the army of the
Nawab, so he could not out all the French from
Bengal. Hence, the war was inevitable between
the two.

9. SIXTH
• Clive had twice defeated the Indian army
and he considered the Indian army no more
than a mob which could be terrified by the
sound of the bullet. As Clive had joined
hands with Mir Jafar, the Commander of
Sirajuddaula. Durlabh Rai and some other
military personnel, he felt his position to be
quite strong and so could think of making
an invasion against Sirajuddaula who was
surrounded by traitors.