QDir::currentPath() returns deifferent values in application when its run from QtCreator or when its started on device

Please check the attached application, when it's run/debug-ed from QtCreator on an embedded linux device through SSH then the output coming from QDir::currentPath(); is different when the user logs in through terminal and cd to remote dir and runs the app from there.
QDir::setCurrent(QCoreApplication::applicationFilePath()); or chdir(qPrintable(QCoreApplication::applicationFilePath())); also doesn't work.
Setting PWD or HOME in system environments doesn't help.