Meaning of Enter upon
Bangla: আরম্ভ করা, নিযুক্ত হত্তয়া
ग्रहण करना, स्वीकार करना, शुरू करना, हाथ में लेना
Unknown / অজানা / अज्ञात
to come or go in: Knock before you enter.
to be admitted into a school, competition, etc.: Some contestants enter as late as a day before the race.
to make a beginning (often followed by on or upon): We have entered upon a new phase in history.
Theater. to come upon the stage (used in stage directions as the 3rd person imperative singular or plural): Enter Othello, and Iago at a distance.
to come or go into: He just entered the building. The thought never entered my mind.