Sync multiple Google calendars on one google account to PC with Thunderbird Lightning

There are more than one way to sync Google calendar to a windows PC but a simple method is to sync via CalDAV by Thunderbird with Lightning extension . Lightning extension can be installed through the Add-ons menu in Thunderbird after it is installed. Restart Thunderbird to enable Lightning when prompted to do so.

 After the email account is set up, click on the account name on the folder pane on the left in the email tab to show the home page.

• Click on the "Calendar" tab then right click on the empty space under the list of calendars on the left pane. The click on "New Calendar..."
• Select a Network calendar

• Select the CalDAV format and enter the following as location

https://apidata.googleusercontent.com/caldav/v2/[your-calendar-id]/events
Replace [your-calendar-id] with the Calendar ID found on the Calendar Settings -> Calendar Address section on your Google calendar. The Calendar ID of your first Google calendar is your Gmail address.

• Enter the username and password of the Google account to authorize Lightning for managing your calendar. 
• Repeat the above steps to create a calendar file for each of the rest calendars on one Google account. The calendar IDs of these calendars typically end with @group.calendar.google.com
• And you can sit back and enjoy them now.