The correct option is A November 1, 1956
The report of the state reorganization commission was implemented on November 1, 1956. The States Reorganization Commission (SRC) constituted by the Central Government of India in August 1953 recommended the reorganization of state boundaries. In October 1955, the Commission, comprising Justice Fazal Ali, K. M. Panikkar and H. N. Kunzru, submitted its report.