STFU! They were given Bangladeshi citizenship! Now they are no less Bangladeshi than you! Eta Tmr Baper ekar desh na!
Maybe ur father's that u r saying this BS.
Go to any Bihari potti & ask them that they want to remain in BD or want to be a Pakistani.Surely u will get ur ans.
Anyhow u r a lazy person & dont want to do any work than wait for a few days.When some big shots frm pak comes to visit BD,than u wil see by urself.They will protest to ask for their pak nationality.