On November 1, 1956, Andhra Pradesh was formed by bringing together all Telugu-speaking regions of Hyderabad.
Karnataka was founded on Karnataka Rajyotsava Day on November 1, 1956, after the passing of the State Reorganisation Act. Karnataka was formed when all Kannada-speaking regions of India were merged to form a single state. However, the state had to be renamed Karnataka on November 1, 1973. It was originally known as Mysore State.
On this day, in 1966, the state of Haryana was carved out of Punjab while Punjab Day is also celebrated across the state on November 1 marking the formation of the state under the Punjab Reorganisation Act (1966).