@@Christina 

Just ask " How was your day ?" ..it will work just fine . 

but if you really want to ask this in Bengali .. then ask .." Apnaar sara-din kamon katlo ?" ( lit. How the whole day passed for you ? ) 

@Christina:

How was your day=> apnar din kemon chiilo?

Keep up your efforts!

How do I ask, '' how was your day ''  in bangla? 

Persian Words in Bengali Language

Persian (ফার্সি Farsi)

Word Meaning Original form
আওয়াজ aoaj sound آواز āvāz
আন্দাজ andaj guess اندازه andāzah "measure"
আয়না aena mirror آینه āynah
আরাম aram comfort آرام ārām
আস্তে aste slowly, softly آهسته āhistah "slowly"
কাগজ kagoj paper كاغذ kāghaz
খারাপ kharap bad خراب xarāb
খোদা khoda god خدا xoda
খুব khub very خوب xūb "good"
গরম gôrom hot گرم garm
চশমা chôshma glasses چشم chashm "eye"
চাকরি chakri job چاکر chākar
চাদর chador blanket چادر chādur
জান jan dear جان jān
জায়গা jaega place جايگاه jāegāh
ডেগচি ḍegchi pot ديگچه dēgchah
দম dôm breath دم dam
দেরি deri late دير dēr
দোকান dokan store دكان dukān
পর্দা pôrda curtain پرده pardah
বদ bôd bad بد bad
বাগান bagan garden باغان bāghān
মজা môja fun
রাস্তা rasta road راسته rāstah
রোজ roj everyday روز rōz "day"
হিন্দু Hindu Hindu هندو hindū
পছন্দ pôchhondo like, appreciate پسند pasand

last night I was chating with someone who knows bengalli . he told me that there are some persian words in ur language . I just want to know wheather this is right or not ?

if this is right tell me some example please .