Answer:
The lawsuit against Cisco for caste discrimination was filed under B. The California Fair Employment and Housing Act1.
This act prohibits discrimination in employment and housing based on a number of protected categories.
While U.S. employment law does not specifically bar caste-based discrimination, the lawsuit contends that the caste system, which has roots in the Hindu faith, is based on protected classes such as religion2.
This case has fueled a movement against caste discrimination and opened up conversations about caste bias in the tech sector34.