How to bevel correct way I have made the svg file and imported and then converted to curve.
As i have make with the red is my original mesh and the below is unmark bevel mesh.

I want my mesh to be bevel from the center and it should not created space or gap as seen the below mesh. The mesh should make bevel from the center mark in green.

Im i doing correct way or is there any other way or how should i make the bevel without creating gap or space in middle of mesh.

As the mesh is present same shape should be bevel from the center.



result



Reference image
You want to make sure that when you are using bevels you don't want any ngons  on your model. These are faces that contain more than four vertices. 

In this situation sense you are trying to only bevel the center of the model try using the inset tool. 

This can be accomplished by the "I" key while you have the desired faces selected. 

Here is a link for how to use the inset tool from the Blender documentation. 

https://www.blender.org/manual/modeling/meshes/editing/duplicating/inset.html