What is the procedure for incorporating a new area into an existing State as per Article 3?
The procedure for incorporating a new area into an existing State as per Article 3 involves the following steps:

1. A bill to form a new State or alter the boundaries of any existing State must be introduced in either House of Parliament only with the recommendation of the President.
2. If the proposal contained in the bill affects the area, boundaries, or name of any State, the bill must be referred by the President to the Legislature of that State for expressing its views within a specified period or within an extended period allowed by the President.
3. Once the specified or allowed period expires without objection from the State's Legislature, the bill can proceed and become law, incorporating the new area into the existing State.