Cisco's workforce includes thousands of Indian immigrants, most of whom were born Brahmins or other high castes. OAKLAND, Calif. (Reuters) - California regulators sued Cisco Systems Inc on Tuesday, accusing it of discriminating against an Indian-American employee and allowing him to be harassed by two managers because he was from a lower Indian caste than them. Former Cisco engineering managers Sundar Iyer and Ramana Kompella also are defendants in the lawsuit, which accuses them of ha