To activate the Group Company feature, a minimum of two companies have to be loaded or opened. Since you have been working with a single company ( www.swayam-education.com), the Create Group Company feature will not be activated.
Create another company . for example, name Balasore Telecom Services. Ensure that both www.swayam-education.com and Balasore Telecom Services are loaded. Use ALT + F3 to view the Company info menu and you will see that the Create Group Company feature is activated.
Select Create Group Company and press Enter to display the Group Company Creation screen. Enter the details as shown :