What is the Article 263?

Article 263 of the Indian Constitution deals with provisions with respect to an inter-State Council. It further has the following provisions:

• If, at any time, it appears to the President that the public interests would be served by the establishment of a Council charged with the duty of
• Inquiring into and advising upon disputes which may have arisen between States;
• Investigating and discussing subjects in which some or all of the States, or the Union and one or more of the States, have a common interest; or
• Making recommendations upon any such subject and, in particular, recommendations for the better coordination of policy and action with respect to that subject, it shall be lawful for the President by order to establish such a Council, and to define the nature of the duties to be performed by it and its organisation and procedure. 

Further Reading:

• Inter-State Water Disputes Tribunals in India
• Interlinking of Rivers