In 1857, rumors played a pivotal role in igniting and spreading the Revolt of 1857, often inflaming public sentiments against British rule. Given the historical context, controlling rumors would have required a multifaceted approach.

1. Improved Communication Channels: Establishing clearer, more transparent communication between the British administration and the local population could have prevented the spread of misinformation. Official proclamations in local languages, distributed through trusted community leaders, would have countered rumors.

2. Engaging Local Leaders: The British could have engaged more actively with local leaders, religious figures, and influential individuals to disseminate accurate information. These leaders were trusted by the masses and could have helped quell false narratives.

3. Regular Patrols and Public Gatherings: Increasing the presence of military patrols and organizing public gatherings to address concerns would have provided the British with a platform to directly confront and debunk rumors.

4. Sensitive Handling of Cultural and Religious Issues: Acknowledging and addressing cultural and religious sensitivities could have minimized the grievances that rumors exploited. For instance, more sensitivity towards the concerns regarding the use of animal fat in cartridges could have prevented the escalation of unrest.

These strategies, contextualized to 1857, could have mitigated the impact of rumors and potentially altered the course of the revolt.