Yuboraj (যুবরাজ)

The prince who will become the future king. Bengali variation of the word Yuvraj, pronounced as যুবরাজ (Juboraj).

A Hindu Bengali name. Used extensively throughout Indian history in epics like Mahabharat and Ramayan and in the courts of the kings.
The pronunciation of the name varies from person to person depending on the language used (in Hindi it's Yuvraj, in Bengali it's Juboraj and so on).