Formal:
* नमस्ते (namaste): This is the most common and respectful greeting, meaning "I bow to you."
* आयुष्मान् भव (āyushmān bhava): This means "May you have a long life" and is another polite and formal greeting.
Informal:
* शुभं भवतु (shubham bhavatu): This means "May it be auspicious" and is a more casual greeting.
* सदाचार (sadācāra): This is a friendly and informal greeting that literally means "good conduct."
Other options:
* सुप्रभातम् (suprabhātam): This means "good morning."
* शुभ रात्रि (shubha rātri): This means "good night."
The best greeting to use depends on the situation and your relationship with the person you are greeting.