VKVinoth Kumar Sundara Moorthy Syncfusion Team June 13, 2019 08:34 AM
Thank you for contacting support.
We have checked your reported issue and we have already considered this as defect “Need to provide localization support for AND and OR operator in QueryBuilder”. You can track the status of this defect using below link from our feedback portal.
The fix for this issue will be included in our Essential Studio 2019 Volume 2 release, which has been tentatively scheduled to roll out in the end of June 2019. We will inform you once this release has been rolled out and appreciate your patience until then.