Can the President establish an Inter-State Council without any involvement from Parliament?
No, the President cannot establish an Inter-State Council without any involvement from Parliament. According to Article 263 of the Indian Constitution, if at any time it appears to the President that the public interests would be served by the establishment of a Council charged with certain duties, then it shall be lawful for the President by order to establish such a Council and to define its nature of duties, organization, and procedure. However, this is subject to Parliamentary involvement as the article explicitly mentions "it shall be lawful for the President".