To help me understand what you are looking for, please provide more context:
* What are you trying to measure? (e.g., length, volume, weight, time, etc.)
* Where did you encounter the term "disaranu"? (e.g., a book, a website, a conversation, etc.)
* Can you provide any more details or examples of how it is used?
With more information, I can help you find the correct unit of measurement.