Question

why is the revolt of 1857 called the first war of independence what were it's immediate causes​

Answer 1

Explanation:

the immediate cause of the revolt of 1857 was the introduction of the Enfield Rifle.

because: it is believed that that the cartridge of the Enfield Rifle had to bitten off before use. ... so the introduction of Enfield Rifle had upset the feelings of the Hindus and Muslims which were a major of the Indian population.

Answer 2

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the revolt of 1857 was known as the first war of independence because it was the cause of a big rebellion which started all because when the British introduced Enfield rifle's cartridges which were greased with the fats of pigs and cows, the sacred for Hindus and unclean for Muslims against their religion.

more information

The main causes of the War were political, social, economical, military and religious. ... The main event which became the immediate cause of the war was the refusal of the Sepoys to use the grease covered cartridges (greased with fat of pig and cow) on January 23, 1857