I'm sorry, I haven't heard of Kura Rajanna specifically. There could be many people with this name. Maybe it's a local figure in a particular region. Without more context, it's difficult to tell the real story.
I really don't know much about Kura Rajanna's real story. It could be that he is a relatively unknown figure outside of a certain area or group. There's not enough information to say much at this point.
In the comic, Batman and Harley Quinn have a tense dynamic. Harley often causes trouble for Batman, but he's determined to bring her to justice. Sometimes, there's a hint of a cat-and-mouse game between them.
The Onee Punch Man anime follows the manga quite closely. Some minor changes might be in the animation style or the pacing of certain scenes, but the core story remains the same.
The criteria for comic grading scale usually include factors like the condition of the cover, pages, colors, and binding. A mint condition comic with no flaws would score higher.