Add meetings from SugarCRM calendar to Google calendar and viceversa, at runtime.

https://www.sugarcrm.com/feature/google-apps-integration/     ?  Maybe, not sure

This link has just information about G Suite. Not given step by step instructions that how to integrate it?

You can try Rolustech's GSync plugin, https://www.rolustech.com/rtgsync/

You have to get the module from SugarCRM, I am sure it comes with instructions on how to install it.

The product linked is called Sugar Connect. Documentation on how to integrate and use it is distributed between 4 guides:

Deployment & Administration Guide - 

User Installation Guide

User Guide

Portal User Guide - The portal is for administrators to configure user-specific access and other features such as calendar sync.

Thanks Chris. I will try this.

Allow me to introduce RT GSync (https://www.sugaroutfitters.com/addons/gmail-sync) It is an award-winning solution for problems exactly like yours. It syncs Gmail, Calendar, Contacts and even Google Drive directly with your Sugar so you don't have to jump back and forth. You can sync your data as frequently as you want. It works both ways too, so you can add meetings or contacts on either platform and they will be synced to the other in a matter of minutes.