The standard has always been first, last (which are Muslim names) followed by a short nickname of Bengali (i.e. Pali/Sanskrit origin).
Some uneducated people run out of classy names and start naming their kids after weird things (i.e. "Dollar Bhai", "Boltu Bhai").
Also - strange names found nowhere else in any other Muslim country - "Musammat Morzina Begom" ....
Some film stars change their names to appear more classy -
Mohammad Zahirullah became Zahir Raihan (he made Pakistan's first color film, Sangam)
Hena Bhattacharya became Nilufar Begum (adopting Islam) after she married Zahir Raihan, then adopted the filmi name Sumita Devi.
In more recent times,
Sharmin Akter Nipa became Mahiya Mahi
Shamsun Nahar Smrity became Pori Moni.