India union contains 3 types of territories
a. state territory,
b. union territories,
c. other territories as may be acquired at any time ,
Article 3 of the Indian
constitution empowers the parliament to increase or diminish the area of any state, this is bases on the principle of integrity of India, the procedure of formation of a new state, etc, is by simple majority in both the houses of parliament. The president, before giving assent to the bill is required to refer the bill to the legislature of the concerned state to get its opinion.