The correct word is "Ishtahars".
During the 1857 revolt, rebel leaders aimed to disseminate their ideas and garner support. They achieved this through proclamations and other communication methods. In the Indian context, "Ishtahars" specifically denotes public notices or manifestos used to spread messages to a wider audience.
We will now review the provided options to clarify why "Ishtahars" is the correct selection:
Consequently, "Ishtahars" is the most appropriate answer.