Modern Indian History
The immediate cause of the Battle of Plassey was

The English attempts to strengthen their fortifications at Fort William
Siraj-ud-Daulah's attack on Fort William and capture of Calcutta (Alinagar)
The English support and asylum to the political rivals of Nawab Siraj-ud-Daulah
Misuse of Dastaks (passes for free trade) by the Company and its officials

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