Which of the following battles resulted in a decisive victory of the British East India Company, securing its early control over a substantial region of India ?

Correct option is C

The correct answer is the Battle of Plassey
The Battle of Plassey was fought on 23rd June 1757 between the forces of the British East India Company led by Robert Clive and the army of the Nawab of Bengal, Siraj-ud-Daulah, who was supported by the French. The British victory was largely due to the betrayal of the Nawab by his commander Mir Jafar. This battle marked the beginning of British political and military dominance in India. After winning the Battle of Plassey, the British East India Company gained control over the rich province of Bengal, laying the foundation for their rule in India.
Information Booster:
• The Battle of Plassey was fought on 23 June 1757 between the British East India Company led by Robert Clive and the Nawab of Bengal, Siraj-ud-Daulah, who was supported by the French.
• The British secured victory primarily due to the defection of Mir Jafar, the Nawab's commander-in-chief, who betrayed Siraj-ud-Daulah.
• A significant portion of the Bengal army was previously engaged in defending against Ahmad Shah Durrani’s invasion of the Mughal Empire, weakening their resistance at Plassey.
• The battle resulted in the British East India Company gaining control of Bengal.
Additional Knowledge:
Third Battle of Panipat – The Third Battle of Panipat[a] took place on 14 January 1761 between the Maratha Confederacy and the invading army of the Durrani Empire.
• Battle of Haldighati – The battle of Haldighati was fought on 18 June 1576 between the Mewar forces led by Maharana Pratap, and the Mughal forces led by Man Singh I of Amber.
• First Battle of Tarain – The First Battle of Tarain, also spelt as the First Battle of Taraori, was fought on 14 January 1191 between the invading Ghurid army led by Muhammad of Ghor and the Rajput Confederacy led by Prithviraj Chauhan, near Tarain (modern Taraori in Haryana, India).