How do you say heartiest congratulations in Bengali?

In Bengali, "heartiest congratulations" can be expressed as "অভিনন্দন" (Abhinondon) or "হৃদয় থেকে অভিনন্দন" (Hridoy theke Abhinondon), which translates to "congratulations from the heart." This phrase conveys warm wishes and heartfelt congratulations to someone celebrating an achievement or special occasion.