Question -
Answer -
In the given story, the climax is that Mahendra is acutely frightened by the possibility of the ghost actually been to his room the previous night. He resolves to leave the haunted place the very next day.
Another climax could have ended up with Mahendra being more courageous and trying to find out the reality instead of running away from it. He would have found that the entire story was cooked-up by Iswaran and he was the one holding the bundle in the night to scare Mahendra and make him believe his story.