The revolt failed for a combination of reasons. It lacked unity of purpose and a single, accepted leader; different sections — rulers, peasants, sepoys, zamindars — had different aims. Large parts of India, including all of South India, Bengal, Punjab, Rajputana and much of Maharashtra, remained loyal or passive, and powerful native rulers and chiefs actively supported the British.

The British possessed superior military organisation, a disciplined officer corps, modern artillery and effective communication through the telegraph and railways. Many Indian soldiers of the Madras and Bombay armies and the Punjab irregulars remained with the British. The revolt also failed to spread to the educated middle class and was ruthlessly suppressed by sheer force.