Being a federal contractor they have additional nondiscrimination rules they must follow.
And they have been sued in the past for violating those rules especially when it comes to labor and discrimination.
NATIONAL ORIGIN discrimination is a BIG nono for a federal contractor. Hiring Indians over americans would be a violation of Executive Order 11246...
Wells Fargo has been sued before for violating this order, and they lost bigly:
https://www.housingwire.com/articles/wells-fargo-settles-allegations-of-discriminating-against-female-african-american-job-applicants/
From the article:
Additionally, the investigation found that Wells Fargo discriminated against 282 African American applicants for phone banker positions in Phoenix.
In doing so, Wells Fargo failed to comply with Executive Order 11246, which prohibits race and s-x discrimination by federal contractors, the Labor Department said.
As part of the settlement with the Labor Department, Wells Fargo will pay $603,612 in back wages, interest and benefits to the affected applicants, but does not admit liability in the matter.
Wells Fargo must also make job offers to 66 of the original applicants (17 in Glen Allen, Virginia, 20 in Salt Lake City, and 29 in Phoenix) as positions become available.
Beyond that, Wells Fargo must “review and revise its selection process and provide better training to its hiring managers to eliminate practices that resulted in the violations,” the Labor Department said.
“Companies that accept federal contracts must monitor their hiring processes to ensure applicants are not rejected based on unlawful practices,” Office of Federal Contract Compliance Programs Regional Director Michele Hodge added
You can read more about executive order 11246 here:
https://en.wikipedia.org/wiki/Executive_Order_11246
It "prohibits federal contractors and federally assisted construction contractors and subcontractors, who do over $10,000 in Government business in one year from discriminating in employment decisions on the basis of race, color, religion, s-x, or NATIONAL ORIGIN