Hi chethan,
Please see the error. right click on the error message and see if it has an option “show problematic geometry”. If the problematic geometry identifies a specific set of faces/edges, you can check the failed mesh to determine if there is a problem with geometry at this location or you can change the mesh setting there. Using size control and reducing the mesh size might help you.
Set mesh quality to No and see if it generates the mesh. Then check the quality to locate the poor-quality elements, change the mesh size and improve the quality.
Regards,
Sampat
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