  The visible universe is filled with different types of plasma media in the
form of stars, nebulas and other forms of excited gases. These matter fields
have a high influence on the gravity and are likely to be present around the
black holes due to the immense gravitational attraction. Since a plasma medium
affects the speed of light, therefore we investigated the null geodesics and
various optical features around the rotating black hole in Kalb-Ramond gravity
immersed in plasma medium. Various plasma distributions are considered to
develop a comparative study for their influence on unstable null circular
orbits, shadows and evaporation rate of the black hole in the presence of a
plasma medium. Moreover, the shadow results are also compared with Event
Horizon Telescope data for M78* and Sgr A* in order to estimate the parametric
bounds for which the rotating black hole in Kalb-Ramond gravity is considered
either M87* or Sgr A* under the different values of plasma parameters. From
this analysis, we also found the distribution of plasma that has a significant
impact on the above mentioned features and is most likely to be present around
M87* and Sgr A*.
