Answer:
Found this off of google, "the introduction of enfield rifles in the army was the immediate cause because To load the rifle, sepoys had to bite the cartridge open to release the powder. The grease used on these cartridges was rumoured to be made of beef and pork which angered the hindu and the muslims in the army." Sorry if this doesn't help.
Hope this helps, have a great day, have a great weekend and stay safe!
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