Union Bank of India was originally established and registered on November 11, 1919, under the corporate title The Union Bank of India Limited. Its foundational corporate office in Bombay (now Mumbai) was famously inaugurated by Mahatma Gandhi. Over subsequent decades, the institution operated under this limited company designation until it was officially nationalized by the Government of India in 1969, transitioning into a premier state-owned public sector bank while retaining its historic core name.