Which of the following is the correct chronological sequence of the formation of states in India?
Sikkim, Mizoram, Arunachal Pradesh, Goa
1950-01-26: The Constitution took effect. The divisions of India were classified as follows: nine Part A states, formerly governors' provinces; eight Part B states, formerly native states or groups of states; ten Part C states, formerly chief commissioners' provinces; and two Part D territories. Name of East Punjab state changed to Punjab (India). Greater Rajasthan union became Rajasthan state.