"In this instance we could not play off the Mohammedans against the Hindus”. To which one of the following events did this remark of Aitchison relate?

1. The quote "In this instance we could not play off the Mohammedans against the Hindus” reflects the British administration's frustration at the unity shown by Indians during a major uprising, which countered their Divide and Rule strategy. 2. This specific remark is attributed to Charles Aitchison, commenting on the nature of the Revolt of 1857. 3. The Revolt of 1857 was marked by considerable cooperation and unity between Hindus and Muslims (referred to as Mohammedans in the quote) against the British East India Company's rule. 4. This unity was a significant factor in the scale of the revolt and a cause for concern for the British, as acknowledged in Aitchison's statement. The other movements listed, while significant, are not the specific context for this famous quote.