could be used as a symbol of the union between the states ruling class and the majority of its population
Explanation:
The particular event depicted in the painting was likely important to Golkonda rulers mostly because it "could be used as a symbol of the union between the states ruling class and the majority of its population."
This is evident in the fact that one of the images in the painting depicts how someone who is assumed to be from a ruling class is attending to a poor or commoner.
Also, the other image depicts how a quite number of the State's ruling class members mixed with a majority of the population.