Hi Indrani,
Thanks for contacting Syncfusion support.
We checked in our sample, when we hover the mouse pointer on the Header Text Name the tooltip displays properly. We also check with hovering in the same column area(away from the HeaderText), the tooltip display properly in our sample.
Find the screenshot:
To reproduce the issue, we need the following details
1. Code example of a Grid.
2. If possible, replicate the issue in the attached sample.
3. Exact replication procedure
4. Essential Studio Version details.
Regards,
Prasanna Kumar N.S.V