Final answer:
Cannot provide an accurate answer to "About how long has it been since Murugan left his wife?" without additional context or reference to a specific text where the character Murugan comes from.
Step-by-step explanation:
The question "About how long has it been since Murugan left his wife?" requires additional context to provide an accurate answer, such as a specific text or story reference. Without that context, it is not possible to determine whether the correct answer is a few weeks, a few months, a few years, or a few days. In literature, character actions and timelines can vary greatly, so a precise answer would depend on the story in which the character Murugan appears. If Murugan is a character from a book, play, or other narrative, please provide the title or more details about the story for a proper response.