Not having read the 'aadujeevitham original story', it's difficult to name the main characters. But typically, main characters can be heroes or heroines, antagonists, or complex characters with a mix of good and bad traits. They are the ones that the plot revolves around, and their actions, decisions, and relationships with other characters form the core of the story. In this story, they could be individuals from different walks of life, representing different aspects of the society or culture the story is set in.
I don't know the 'aadujeevitham original story' well enough to name the main characters. But usually, main characters are those who drive the story forward, face the major conflicts, and experience significant growth or change throughout the narrative.
Since I haven't read 'aadujeevitham original story', I can't say for sure who the main characters are. However, in most stories, the main characters are often the ones the story focuses on the most. They could be ordinary people with extraordinary circumstances, or they could be unique individuals with special abilities or qualities that set them apart in the context of the story.