As a security precaution, the British increase…

As a security precaution, the British increase the ratio of British to Indian troops following the mutiny.

In 1857 British India's armies had had 45,000 Britons to 240,000 Indian troops.

By 1863 this ratio has changed to a "safer mix" of 65,000 British to 140,000 Indian soldiers.

In the aftermath of the revolt, which had begun among Bengalis in the British Indian Army, the British form an opinion, later refined as a theory, that there are martial and nonmartial races in India

The nonmartial races include the Bengalis; the martial include primarily the Punjabis and the Pathans, who had supported the British during the revolt.