The State Bank of India Staff Association (SBISA) stands as one of the most powerful and historic trade unions in India. Its roots trace back to the Imperial Bank of India Indian Staff Association, established in 1920 under the Societies Registration Act—even before the enactment of the Trade Union Act (1926) in the country. This gives SBISA a legacy of over a century of relentless struggle and unwavering commitment to the welfare of bank employees.