vtk-6.3.0 external data not found

For my project, I need to install vtk-6.3.0 on ubuntu 18.04. I cloned and did a git checkout v6.3.0 and was able to configure and generate cmake output file but when I try to compile using “make”, vtk is unable to download some resources saying http://www.vtk.org/files/ExternalData/MD5/b7d4fa1943ca47ef537e6847886e3935 ("Timeout was reached"). I think this can be solved if I get the vtkdata.zip file for version 6.3.0. I can manually extract the MD5 file so that it doesn’t need to download those resources from the site.

Is there a way to get the vtkdata.zip file for vtk version 6.3.0 ??

Thanks in advance.

This link should work: https://www.vtk.org/files/release/6.3/VTKData-6.3.0.tar.gz