Auto-completion not available for Jupiter Notebook if started from the command line?

Anaconda3 was installed. But no auto-completion is available for Jupiter Notebook when started from the command line. But Auto-completion becomes available if the Jupyter Notebook is started from the start menu by clicking on “Jupyter Notebook”, which is inside the Anaconda folder in the start menu.

For the following code, pressing the TAB key after the “.”, doesn’t help.