The image is a photograph of a red sign on a brick wall. The sign is rectangular in shape and has white text on it. The text reads "Caste system" in bold letters. Below the text, there is a brief description of the caste system, which states that in 1920, Kasturba began working among the Haridwar (low caste people), she discarded her favourite saras and in the spirit of liberation she began to wear Khadi (hand-spun and woven material). 

The sign also mentions that she was strong and committed to the struggle and ability to convince people to join the struggle that while in prison, Gandhi spun cotton and asked his colleagues to have it woven into a red border for Ba.

At the bottom of the sign, there are two lines of text, one in white and one in red. The background of the image is blurred, but it appears to be an outdoor setting with trees and buildings visible in the distance.