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| 1733 | Birth |  |
| Birth of MŒrzƒ Mohammad Sirƒjud Dawla, more popularly known as Siraj-Ud-Daulah, the last independent Nawab of Bengal, Bihar and Orissa |
| 1756 | Black Hole of Calcutta | |
| June Calcutta Alleged to have put 146 British subjects in a 20 by 20 foot chamber, known as the infamous Black Hole of Calcutta, only 23 were said to have survived the overnight ordeal |
| 1756 | Capture | |
| June Fort William Capture Fort William, Calcutta, from the British |
| June Kolkata Raises his army and captures Kolkata from the British |
| 1756 | Siege of Calcutta | |
| June Calcutta Capture Fort William, Calcutta, from the British |
| 1756 | Siege of Kolkata | |
| June Kolkata Raises his army and captures Kolkata from the British |
| 1756 | Succession | |
| April Mirza Mohammad Siraj succeeds Ali Vardi Khan as the Nawab of Bengal at the age of 23, and took the name Siraj-Ud-Daulah |
| 1757 | Battle of Plassey | |
| 23rd June Plassey After Siraj-Ud-Daulah lost the battle of Plassey to the British, a victory aided by the treachery of his former army chief Mir Jafar he escapes to Murshidabad and then to Patna by boat |
| 23rd June Plassey The ostensible reason for the battle of Plassey was Siraj-ud-Daulah's capture of Fort William, Calcutta (which he renamed Alinagar) during June, 1756 |
| 1757 | Death | |
| 22nd July Siraj Ud Daulah, the last independent ruler of Bengal, is brutally executed by Mohammad Ali Beg under orders from Mir Jafar |
| 1757 | Execution | |
| 22nd July Siraj Ud Daulah, the last independent ruler of Bengal, is brutally executed by Mohammad Ali Beg under orders from Mir Jafar |
| 1757 | Siege of Calcutta | |
| 2nd Jan Calcutta The British settlement at Fort William seeks assistance from Presidency of Fort St. George at Madras , which sends Colonel Robert Clive and Admiral Charles Watson, they re-capture Calcutta |
| 5th Feb Calcutta The Nawab marches again on Calcutta but is surprised by a dawn attack by the British |
| 7th Feb Calcutta The siege of Calcutta results in the treaty of Alinagar |
| 1757 | Treaty of Alinagar | |
| 9th Feb Calcutta Signed between Robert Clive of the British East India Company and the Nawab of Bengal, Mirza Muhammad Siraj Ud Daula |
| 9th Feb Calcutta The Nawab will recognize all the 1717 provisions of Mughal Emperor, Farrukh Siyar's Farman and all British goods that pass through Bengal will be exempt from duties |
| 9th Feb Calcutta The siege of Calcutta results in the treaty of Alinagar |
| 9th Feb Calcutta The signing of the treaty is one of the events leading up to the famous battle of Plassey |
