Where can I find the developer docs zip for Maya 2016?



I have already downloaded Maya User Guide which has documentation for MEL command and their pymel counterparts. But now I want to see OpenMaya documentation, which I came to know is included in Maya Developer Docs.

I was surfing Maya Documentations page at: https://knowledge.autodesk.com/support/maya/getting-started/caas/simplecontent/content/maya-documentation.html
where I found,

The Maya Developer Help is included in the Maya Help (beginning Maya 2015). It includes resources for using the Maya API, and working with QT and Python in Maya.

But when I see the Maya Developer Help section of the Maya User Guide, it says:

The Maya Developer Help is a separate part of the Maya Help. You can find the Maya Developer Help at http://www.autodesk.com/me-sdk-docs.

The above link redirects to https://www.autodesk.com/developer-network/platform-technologies/me-sdk-docs-2016. This page has two links to download the zip files, http://www.autodesk.com/maya-sdkdoc-2016-download-enu/maya-2016-ext2-developer-help.zip and http://www.autodesk.com/maya-sdkdoc-2016-download-enu/maya-2016-developer-help.zip. Both of which are giving me HTTP 404 error.

Can anybody provide me the link to download the zip folder?