the act of presenting or submitting something formally, often in a governmental context.

a formal declaration or announcement.

औपचारिक घोषणा

English Usage: His storting about the new policy surprised everyone at the meeting.

Hindi Usage: उसकी नई नीति के बारे में औपचारिक घोषणा ने बैठक में सभी को आश्चर्यचकित कर दिया।