We don't have synonyms for kalasa yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are kolasa, kalas and kailasa.
(n) :
Alternative form of kalasha. [A metal pot with a large base and small mouth, used in Hindu rites, in which it is filled with water, coins, grain, etc. and topped with a coconut.]
(n) :
Alternative form of kalasha. [A metal pot with a large base and small mouth, used in Hindu rites, in which it is filled with water, coins, grain, etc. and topped with a coconut.]