The Nutanix Professional Services Delivery Partner Program is invitation-only and is restricted to a select group of partners. A strong business case is required and is based on delivery volume for any given region.
Use Partner Portal registration via this link: https://www.nutanix.com/partners/become-a-partner
Once on the page, from the Partnership area of interest dropdown list, please select Service Delivery partner and click the link highlighted below:
This will direct you to the Application portal:
Once this has been filled out and submitted, this will trigger the registration and Legal review process.