Here are some other ways to say "sir" in Hindi, depending on the context and level of formality:
* महोदय (mahoday): This is a formal and respectful term used for someone of high standing.
* श्रीमान (shrimaān): Another formal and respectful term for a man.
* जनाब (janab): This is a more informal way to say "sir" and is commonly used in North India.
* जी (ji): This is a polite suffix that can be added to the end of a person's name or title, such as "श्रीमान जी" (shrimaān ji) or "साहब जी" (sahab ji).
It's important to choose the appropriate term based on the context and your relationship with the person you are addressing.