Mesh deforming when importing skinned and animated fbx from maya

I have a model that was rigged and animated in maya but as soon as i bring the fbx of that model in unity its mesh geometry is deforming ( vertices are not at the same position as they can be seen in maya ).I have tested the fbx in 3ds max and blender also and everything seems to be fine , looks like the problem is only in unity.

This is how the model is seen in maya

This is how the model is seen in unity

yaaa,thanks for the reply @Sanky ,i actually freeze the model before starting the rig and while exporting i had also checked deformation option to be on and about the baking my procedure is to select the joint hierarchy than select the group of mesh that export fbx and these are my properties for exporting fbx.alt text