Importing IGES and Geometry Cleanup

I actually want to import the IGES file generated by GiD software in Hypermesh. While importing the IGES file, there are a lot of free edges (red lines) created that should actually be non-manifold (yellow lines). I have to toggle those free edges individually which is very time-consuming.

 

Is there any way to get the minimum free edges so that I could save my time? I am actually working on my final thesis work and need urgent help. 

I have attached the IGES file of the geometry.