Formal:
* स्वागत आहे (Swagat aahe): This is the most common and formal way to say welcome. It literally means "Welcome is."
* आपले स्वागत आहे (Aapale swagat aahe): This is a more respectful way to say welcome, literally meaning "Your welcome is."
Informal:
* आलात का? (Aalat ka?): This means "Have you come?" and is a casual way of welcoming someone.
* येऊन गेलात का? (Yeun gelaat ka?): This means "Have you come and gone?" and is another casual way of welcoming someone.
Other options:
* आपणास स्वागत आहे (Aapanas swagat aahe): This is a more polite way to say welcome, literally meaning "We welcome you."
* तुमचे स्वागत आहे (Tumche swagat aahe): This means "Your welcome is" and is a more personal way to say welcome.
The best way to say "welcome" in Marathi will depend on the situation and who you are speaking to.