What was the prime cause of Siraj-ud-Daulah s ruin

The conspiracy of the men of his court The newly acquired confidence and strength of the British The superior military tactics of the English His lack of energy and decision

Correct Answer

The conspiracy of the men of his court

British conspired with Siraj-ud-Daulah s army chief Mir Jafar and promised him to make the nawab of Bengal. On the day of the battle Mir Jafar did not participate with his soldiers. The nawab s much smaller army was defeated. Thus the nawab lost the battle due to the treachery of Mir Jafar