Here's a breakdown:
* Poorva (पूर्व) means "former" or "past" in Hindi.
* Vidyarthi (विद्यार्थी) means "student" in Hindi.
* Sangamam (संगम) means "gathering" or "association" in Hindi.
Therefore, "Poorva Vidyarthi Sangamam" literally translates to "Former Student Gathering" or "Association of Former Students". The most common and accurate English equivalent is Alumni Association.