Explanation:

Creation of States:

Maharashtra and Gujrat       :    1960

Dadra and Nagar Haveli      :    1961

Goa, Daman and Diu                     :    1962 [Goa conferred statehood in 1987]

Puducherry                                    :     1962

Nagaland                                       :     1963

Haryana and Chandigarh              :     1966

Himachal Pradesh                         :     1971

Meghaglaya, Manipur and Tripura :     1972 [ Meghalaya got statehood while Manipur and Tripura were carved out  of Meghalaya and conferred status of UT]

Sikkim                                            :      1975

Mizoram, Arunachal Pradesh and Goa:   1987

Chhatisgarh, Uttrakhand and Jharkhand:   2000

Telangana                                           : 2014

Jammu and Kashmir (previously state) became UT in 2019 

Dadra and Nagar Haveli and Daman and Diu (Merger of Union Territories) Act, 2019. The merged Union Territory was renamed as Dadra and Nagar Haveli and Daman and Diu from 26 Jan, 2020 onwards.