Article 3 of the Indian Constitution has been invoked several times since its enactment in 1950. The exact number of times it has been used is not readily available, but it has been used to create new states, alter the boundaries of existing states, and change the names of states and territories.

Some of the notable instances where Article 3 has been invoked include the creation of Telangana as a separate state from Andhra Pradesh in 2014, the formation of Uttarakhand and Jharkhand as separate states in 2000, and the creation of Chhattisgarh as a separate state from Madhya Pradesh in 2000.

Article 3 has also been used to change the names of several states and territories over the years. For example, the Union Territory of Pondicherry was renamed as Puducherry in 2006, while Orissa was renamed as Odisha in 2011.

Overall, the use of Article 3 has been an important tool for the Indian government to reorganize states and territories in order to better address the needs of the people living in those areas.

Source: ChatGPT