Using Gantt Chart in LGPL-3 Application

Under which license we can use the Gantt Chart library, as the application we are planning to use it is LGPL-3 which is a derivative of the GNU GPL License.

Hello Parthiv,
You can use the GPL version if your application is compatible with the GPL license:
https://www.gnu.org/licenses/gpl-faq.html#IfLibraryIsGPL

Yes, as per this document : https://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses
LGPL-3 is Compatible GNU GPL.