The company introduced Enfield rifle in the Indian army. Greased cartridges were to be used in this rifle. The soldiers had to bite the end of the cartridge before using it. The cartridge were said to be greased, with the fat of pig or cow hence both Hindu and Muslim soldier resented. It was regarded as an attempt to pollute them and their religion. This feeling become a spark to inflame the uprising of 1857, and become the immediate cause of the revolt.