According to Article 3 of the Indian Constitution, the power to alter state boundaries or rename states lies with the Parliament.
Process:
- A bill is introduced in either House of Parliament.
- The President must first refer it to the concerned state legislature for its opinion (though their view is not binding).
- After that, Parliament can pass the law with a simple majority.
Option Analysis:
- (A) Chief Justice has no legislative powers.
- (B) Correct — Parliament has the authority.
- (C) President gives assent after the bill is passed but does not make the change alone.
- (D) Prime Minister has no direct authority to change state names.