Formal:
* Athu athi sundaram aanu (അത് അതി സുന്ദരം ആണ്) - This is the most literal and formal translation, meaning "it is very beautiful."
* Athu nalla aanu (അത് നല്ല ആണ്) - This means "it is good" and is a more general expression of approval.
Informal:
* Athu niraiya nalla aanu (അത് നിരയ നല്ല ആണ്) - This means "it is very good" and is more informal than the formal options.
* Athu chala nalla aanu (അത് ചാല നല്ല ആണ്) - This is another informal way to say "it is very good."
* Athu chala sundaram aanu (അത് ചാല സുന്ദരം ആണ്) - This means "it is very beautiful" and is a more informal way to say the same thing as the first formal option.
Other options:
* Athu enikku nalla aanu (അത് എനിക്ക് നല്ല ആണ്) - This means "I like it" and implies that you find it nice.
* Athu nannayi aanu (അത് നന്നായി ആണ്) - This means "it is excellent" and conveys a strong sense of approval.
The best way to say "it is very nice" in Malayalam depends on the specific situation and the tone you want to convey.